WO2016048274A1

WO2016048274A1 - Non-greasy personal care compositions

Info

Publication number: WO2016048274A1
Application number: PCT/US2014/056888
Authority: WO
Inventors: Ewelina LESNIAK; Kathy Potechin
Original assignee: Colgate Palmolive Co
Current assignee: Colgate Palmolive Co
Priority date: 2014-09-23
Filing date: 2014-09-23
Publication date: 2016-03-31
Anticipated expiration: 2017-03-23
Also published as: BR112017004999B1; MX378819B; AU2015322055A1; MX2017003455A; US20170246104A1; CA2957913C; AU2015322055B2; EP3179979B1; US11969496B2; US20200030223A1; US11433018B2; WO2016048425A1; EP3185845B1; BR112017004999A2; EP3179979A1; BR112017005255A2; MX2017003456A; US20170252288A1; MX363316B; US20220362135A1

Abstract

An anhydrous personal care composition, comprising: (a) 45 to 60 weight % of at least one ester, selected from (i) triglycerides, (ii) diglycerides, (iii) monoglycerides, (iv) monoesters of diols, and (v) diesters of diols; (b) a first wax having a melting point of from 35°C to 72°C present in an amount of 5 to 25 weight %; (c) a second wax having a melting point of 73 to 90C present in an amount of 1 to 10 weight %; and (d) at least one plant oil having a saponification value of from 150 to 275 mg KOH/g present in an amount of 5 to 35 weight.

Description

NON-GREASY PERSONAL CARE COMPOSITIONS BACKGROUND

[0001] Various natural personal care compositions (i.e. personal care compositions which are formed from natural ingredients) have been shown to lack robustness against microbial attack. In order to address this issue, anhydrous products have been developed. As these products are anhydrous, they do not support .microbial growth and are therefore micro-robust. However, anhydrous base formulations (which contain mainiy oils and waxes) tend to be very greasy and to have a "heavy" skin feel, which some consumers find to be undesirable. In the case of anhydrous compositions which contain certain metal oxides, e.g. zinc oxide or titanium oxide, the compositions can also leave a white residue on the skin following application. Again, some consumers also find this "whitening" effect to be undesirable. It would therefore be desirable to provide a natural personal care composition which is micro-robust and which is non-greasy. It would also be desirable to provide such a composition which does not leave a white residue on the skin following application. It would also be desirable for such compositions to be physically stable at high and low temperatures,

BRIEF SUMMARY

[0002] In one aspect, an anhydrous personal care composition, comprising: (a) at least one ester, wherein said at least one ester is selected from one or more of the following groups: (i) triglycerides, (ii) diglycerides, (iii) monoglycerides, (iv) monoesters of diols, and (v) diesters of diols, and wherein a total concentration of said at least one ester is 45 to 60 weight %, based on the total weight of the composition; (b) a first wax. having a melting point of 35°C to 72°C present in an amount of 5 to 25 weight %, based on the total weight of the composition; (c) a second wax having a melting point of 73°C to 90°C present in an amount of 1 to 10 weight % based on the total weight of the composition; (d) at least one plant oil having a saponification value of 150 to 275 mg KOH/g, wherein a total concentration of said at least one plant oil is from 5 to 35 weight %, based on the total weight of the composition.

[0003] Optionally, the first wax comprises at least one wax chosen from beeswax, candelilia wax, bayberry wax, and combinations thereof.

[0004] Optionally, the second wax comprises at least one wax chosen from hydrogenated castor oil, sunflower wax, carnauba wax, rice bran wax; and combinations thereof. [0005] Optionally, the first wax is present in an amount of 8 to 1.8 weight % based on the iota! weighi of the composition, optionally 11 to 15 weight %.

[0006] Optionally, the second wax is present in an amount of weight 0.5 to 5 weight % based on the total weight of the composition, optionally i to 3 weight %.

[0007] Optionally, the fust wax has a melting point of 38°C to 65°C, optionally 45°C to 65°C or

60°C to 65 °C.

[0008] Optionally, the second wax has a melting point of 78°C to 85°C, optionally 77°C to 83°C.

[0009] Optionally, the first wax is beeswax and the second wax is hydrogenated castor oil.

[0010] Optionally, the hydrogenated castor oil has a melting point of 77°C to 83°C, optionally 80°C.

[0011] Optionaliy, the total concentration of the at least one ester is from 50 to 55 weight %, based on the total weight of the composition,

[0012] Optionally, the at least one ester is selected from: monoglycerides of capric acid; monoglycerides of capryiic acid; capric triglyceride; capryiic triglyceride; stearic triglyceride; monoesters of ethylene glycol and stearic acid; acetylated glycol stearate; glyceryl dilaurate; propylene glycol dicaprate; 1 ,3-propaaediol dicaprylate; PEG-6 caprylic/capric giycerides; cocoglycerides; and combinations thereof.

[0013] Optionally, the at least one ester is a combination of capryiic triglyceride and capric triglyceride.

[0014] Optionaliy, a weight ratio of capryiic triglyceride to capric triglyceride is from 70:30 to 50:50, optionally about 60:40,

[0015] Optionally, the total concentration of the at least one plant oil is from 5 to 30 weight %, based on the total weighi of the composition,

[0016] Optionally, the total concentration of the at least one plant oil. is from 8 to 30 weight %, based on the total weight of the composition.

[0017] Optionally, the total concentration of the at least one plant oil is from 10 to 21 weight %, based on the total weighi of the composition,

[0018] Optionally, the at least one plant oil comprises at least one plant oil chosen from sunflower oil, high oleic sunflower oil, coconut oil, palm oil, sweet almond oil, castor oil, eanola oil, soybean oil, avocado oil, olive oil, acai oil, andiroba oil, apricot kernel oil, argan oil, passion fruit oil, marula oil, mango oil, shea oil, maeademia nut oil, brazil nut oil, borage oil, copaiba oil, grape seed oil, buriti oil, sesame oil, flaxseed oil, blueberry oil, cranberry oil, blackberry oil, plum oil, raspberry oil, babassu oil. camelina oil, camellia oil. walnut oil, wheat germ oil, calendula oil, cherry kernel oil, cucumber seed oil, papaya oil, aloe vera oil hemp oil, saftlower oil, or a combination of any two or more thereof

[0019] Optionally, the at least one plant oil comprises at least one oil chosen from sunflower oil, high oleic sunflower oil, coconut oil, hemp oil, avocado oil, olive oil, sesame oil, shea, oil, safffower oil, argan oil, raspberry oil, or a combination of any two or more thereof.

[0020] Optionally, the at least one plant oil has a. melting point of -25°C to 30°C.

[0021] Optionally, the at least one plant oil comprises a plant oil which has a saponification value of 150 to 200 rag KOH/g.

[0022] Optionally, the at least one plant oil is a plant oil which has a saponification value of 170 to 200 mg KOH/g.

[0023] Optionally, the plant oil is sunflower oil, optionally high oleic sunflower oil.

[0024] Optionally, the at least one plant oil is a combination of a first oil and a second oil, the first oil having a saponification value of 150 to 200 mg KOH/g and the second oil having a saponification value of 220 to 275 mg KOH/g.

[0025] Optionally, the first oil is present at a concentration of 10 to 20 weight %, based on the total weight of the composition, and the second oil is present at a concentration of 1 to 10 weight %, based on the total weight of the composition.

[0026] Optionally, the first oil is present at a concentration of 12 to 14 weight %, based on the total weight of the composition, and the second oil is present at a concentration of 3 to 7 weight %, based on the total weight of the composition.

[0027] Optionally, the first oil has a melting point of -18°C to -5°C and the second oil has a melting point of 10°C to 25°C

[0028] Optionally, the first oil is sunflower oil and the second oil is coconut oil.

[0029] Optionally, the composition further comprises a vegetable fat having a melting point of

31°C to 60°C.

[0022] Optionally, the vegetable fat is at least one material chosen from cocoa butter, shea butter, palm butter, tucuma butter, avocado butter, kokum butter, olive butter, shorea butter, manoi butter, coffee butter, soy butter, jojoba butter, cupuacu butter, mango butter, pistachio butter, pumpkin seed butter, brazil nut butter, hemp seed butter, illipe butter, murumum butter, ucuuba butter, and combinations thereof.

[0031] Optionally, the vegetable fat is present in a concentration of 1 to 10 weight %, based on the total weight of the composition .

[0032] Optionally, the composition further comprises zinc oxide.

[0033] Optionally, the zinc oxide is present in a concentration of 10 to 30 weight %, based on the total weight of the composition.

[0034] Optionally, the composition comprises (i) 50 to 60 weight % of a combination of caprylk triglyceride and capric triglyceride, wherein the weight ratio of capryllic triglyceride to capric triglyceride is about 60:40; (H) 13.5 to 15 weight % beeswax; (Hi) 1 to 3 weight % hydrogenated castor oil; (iv) 10 to 12.5 weight % sunflower oil; and (v) 10 to 22 weight % zinc oxide.

[0035] Optionally, the composition is one of

20 weight % zinc oxide, 10 weight % sunflower oil, 53 weight % . caprylic/capric triglyceride, 15 weight % beeswax, and 2 weight % hydrogenated castor oil;

20 weight % zinc oxide, 12.5 weight % sunflower oil, 52 weight % eaprySic/eapric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil;

20 weight % zinc oxide, 12, 1 weight % sunflower oil, 52 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, 2 weight % hydrogenated castor oil, and 0.4 weight % fragrance;

12 weight % zinc oxide, 12.5 weight % sunflower oil, 60 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil;

12 weight % zinc oxide, 12.5 weight % sunflower oil, 55 weight % caprylic/capric triglyceride,

13.5 weight % beeswax, 5 weight % shea butter, and 2 weight % hydrogenated castor oil;

13.5 weight % beeswax, 5 weight % coconut oil, and 2 weight % hydrogenated castor oil;

12 weight % zinc oxide, 12,5 weight % sunflower oil, 60 weight % caprylic/capric triglyceride,

13.5 weight % beeswax, and 2 weight % hydrogenated castor oil; or

12 weight % zinc oxide, 12.5 weight % sunflower oil, 52 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, 5 weight % coconut oil, 3 weight % shea butter, and 2 weight % hydrogenated castor oil

[0036] Optionally, the composition is not an antiperspirant or a lip balm.

[0037] Optionally, the composition is a sunscreen or a diaper cream. [0038] Further areas of applicability of the present invention will become apparent from the detailed description provided hereinafter, it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the in vention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

DETAILED DESCRIPTION

[0039] The following description of the preferred embodiments) is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

[0040] As used throughout, ranges are used as shorthand for describing each and every value that is within the range. Any value within the range can be selected as the terminus of the range. In addition, all references cited herein are hereby incorporated by referenced in their entireties. In the event of a conflict in a definition in the present disclosure and that of a cited reference, the present disclosure controls,

[004] ] Unless otherwise specified, all percentages and amounts expressed herein and elsewhere in the specification should be understood to refer to percentages by weight. The amounts given are based on the active weight of the material.

[0042] Unless otherwise specified, all experiments described herein are conducted at 25°C and at atmospheri c pressure .

[0043] As used herein, the term "anhydrous composition" indicates that the composition contains 2 weight % or less tree water. In other embodiments, the maximum amount of water is 1.5 weight %, 1 weight %, or 0.5 weight %. in certain embodiments, there is no free water. When calculating the water content, water molecoles that are part of a hydrate of a material are not counted.

[0044] As used herein, the term "natural composition" indicates that the composition is formulated from ingredients which are extracted, from the earth or sea, derived from plants, or synthesized by other organisms. Similarly, the term "natural ingredients" as used herein indicates ingredients which are extracted from the earth or sea, derived from plants, or synthesized by other organisms.

[0045] As used herein, the "saponification value" (SAP value) of an oil is the number of milligrams fmg) of potassium hydroxide (KOH) which is required to saponify 1. g of the oil.

[0046] As discussed above, personal care compositions formulated from natural ingredients may be formulated so as to be anhydrous in order to ensure micro-robustness in the package and during consumer use. However, such anhydrous compositions have previously been found to have a heavy and greasy feel, which some consumers find undesirable, it would therefore be desirable to provide a natural personal care composition which is micro-robust and which is non- greasy.

[0047] Anhydrous compositions which contain certain metal oxides, e.g. zinc oxide or titanium oxide, can leave a white residue on the skin following application. Consumers may also find this "whitening" effect, to be undesirable. It would therefore be desirable to provide a natural personal care composition which is mkro-rohust and non-greasy, and in which the amount of white residue left, on the skin following application is minimized.

[0048] It would also be desirable to provide a natural personal care composition which is micro- robust and non-greasy, and which does not leave a white residue on the skin following application, which is also physically stable at high and low temperatures (e.g. which does not exhibit separation into a bulk solid phase and a bulk liquid phase at high and low temperatures). It would also be desirable to formulate such compositions from all-natural ingredients (i.e. "100% natural" compositions).

[0049] Therefore, in one aspect, there is provided an anhydrous personal care composition, comprising: (a) at least one ester; wherein said at least one ester is seiected from one or more of the following groups: (i) triglycerides, (ii) diglycerides, (in) monoglycerides, (iv) monoesters of diols, and (v) di esters of diols, and wherein a total concentration of said at least one ester is 45 to 60 weight %, based on the total weight of the composition; (b) a first wax having a melting point of 35°C to 72°C present in an amount of 5 to 25 weight %, based on the total weight of the composition; (c) a second wax having a melting point of 73 °C to 90°C present in an amount of 1 to 1.0 weight % based on the total weight of the composition; (d) at least one plant oil having a saponification value of 150 to 275 mg KOH /g. wherein a total, concentration of said at least one plant oil is from 5 to 35 weight. %, based on the total weight, of the composition.

[0050] The present inventors have surprisingly found that, in addition to having good micro- robustness, such compositions have reduced greasiness and an improved after-feel (such as reduced tackiness and drag) on the skin as compared to other anhydrous compositions. Such compositions are also physically stable at high and low temperatures.

[0051] The present inventors have also surprisingly found that the amount of white residue remaining on the skin following application of the composition is reduced when the compositions comprise a first wax having a melting point of 35°C to 72°C, and a second wax having melting point of 73 °C to 90°C.

[0052] The present inventors have also surprisingly found that such compositions are also physically stable (i.e. do not exhibit separation into a bulk solid portion and a bulk liquid portion) when stored at 49°C/0% re!ative humidity for a period of 13 weeks, and when stored at 40°C/75% relative humidity for a period of 13 weeks, and show acceptable dispensing characteristics in addition to being non-greasy.

[0053] In certain embodiments, the first wax comprises at least one wax chosen from beeswax, candelilla wax. bayberry wax, and combinations thereof.

[0054] hi certain embodiments, the second wax comprises at least one wax chosen from hydrogenated castor oil, sunflower wax, carnauba wax, rice bran wax, and combinations thereof.

[0055] in certain embodiments, the first wax is present in an amount of 8 to 18 weight % based on the total weight of the composition, optionally 1 1 to 15 weight %.

[0056] In certain embodiments, the second wax is present in an amount of weight 0.5 to 5 weight % based on the total weight of the composition, optionally 1 to 3 weight %.

[0057] In certain embodiments, the first wax has a melting point of 38*C to 65°C, optionally 45°C to 65°C or 60°C to 65°C

[0058] In certain embodiments, the second wax has. a melting point of 78°C to 85°C, optionally 77°C to 83°C.

[0059] In certain embodiments, the first wax is beeswax and the second wax is hydrogenated castor oil

[0060] In certain embodiments, the hydrogenated castor oil has a melting point of 77°C to 83°C, optionally 80 °C.

[0061] In certain embodiments, the total concentration of the at least one ester is from 50 to 55 weight %, based on the total weight of the composition.

[0062] In certain embodiments, the at least one ester is selected from: monoglyceodes of capric acid; monoglycerides of caprylic acid; capric triglyceride; caprylic triglyceride: stearic triglyceride; monoesiers of ethylene glycol and stearic acid; acetyl ated glycol stearate; glyceryl dilaurate; propylene glycol dicaprate; 1 ,3-propanedioJ dicaprylate; PEG-6 c-aprylic/capric glyeerkies; cocoglycerides; and combinations thereof. [0063] In certain embodiments, the at least one ester is a combination of caprylic triglyceride and caprie triglyceride,

[0064] in certain embodiments, a weight ratio of eaprylic triglyceride to capric triglyceride is from 70:30 to 50:50, optionally about 60:40.

[0065] In certain embodiments, the total concentration of the at least, one plant oil is from 5 to 30 weight %. based on the total weight of the composition.

[0066] In certain embodiments, the total concentration of the at least one plant oil is from 8 to 30 weight %, based on the total weight of the composition.

[0067] In certain embodiments, the total concentration of the at least one plant oil is from 1.0 to 21 weight %, based on the total weight of the composition.

[0068] certain embodiments, the at least one plant oil comprises at least one plant oil chosen from sunflower oil, high oleic sunflower oil, coconut oil, palm oil, sweet almond oil, castor oil, cano!a oil, soybean oil, avocado oil, olive oil, acai oil, andiroba oil, apricot kernel oil, argan oil, passion .fruit oil, marula oil, mango oil, shea oil, macademia nut oil, brazil nut oil, borage oil, copaiba oil, grape seed oil, buriti oil, sesame oil, flaxseed oil, blueberry oil, cranberry oil, blackberry oil, plum oil, raspberry oil, babassu oil, camelina oil, camellia oil, walnut oil, wheat germ oil, calendula oil, cherry kernel oil, cucumber seed oil, papaya oil, aloe vera oil, hemp oil, safftower oil, or a combination of any two or more thereof. The saponification values are shown in Table 1 below.

[0069] In certain embodiments, the at least one plant oil comprises at least one oil chosen from sunflower oil, high oleic sunflower oil, coconut oil, hemp oil, avocado oil, olive oil, sesame oil, shea oil, safflower oil, argan oil, raspberry oil, or a combination of any two or more thereof

[0070] in certain embodiments, the at least one plant oil has a melting point of -25°C to 30°C.

[0071] In certain embodiments, the at least one plant oil comprises a plant oil which has a saponification value of 150 to 200 rag KOH/g. [0072] in certain embodiments, the at least one plant oil is a plant oil which has a saponification value of .170 to 200 mg KOH/g.

[0073] In certain embodiments, the plant oil is sunflower oil, optionally high oleic sunflower oil.

[0074] in certain embodiments, the at least one plant oil is a combination of a first oil and a second oil, the first oil having a saponification value of 150 to 200 nig KOH/g and the second oil having a saponification value of 220 to 275 rag KOH/g.

[0075] In certain embodiments, the first oil is present at a. concentration of 10 to 20 weight %, based on the total weight of the composition, and the second oil is present at a concentration of 1 to 10 weight %, based on the total weight of the composition.

[0076] In certain embodiments, the first oil is present at a concentration of 12 to 14 weight %, based on the total weight of the composition, and the second oil is present at a concentration of 3 to 7 weight %, based on the total weight of the composition.

[0077] in certain embodiments, the first oil has a melting point of -18°C to -5°C and the second oil has a melting point of 10°C to 25°C.

[0078] In certain embodiments, the first oil is sunflower oil and the second oil is coconut oil.

[0079] In certain embodiments, the composition further comprises a vegetable fat having a melting point of 3 PC to 60°C.

[0080] In certain embodiments, the vegetable fat is at least one material chosen from cocoa butter, shea butter, palm butter, tueuma butter, avocado butter, kokum butter, olive butter, shorea butter, manoi butter, coffee butter, soy butter, jojoba butter, ciipuacu butter, mango butter, pistachio butter, pumpkin seed butter, brazil nut butter, hemp seed butter, ii!ipe butter, munarmru butter, ucuuba butter, and combinations thereof.

[0081] In certain embodiments, the vegetable fat is present in a concentration of 1 to 10 weight %, based on the total weight of the composition.

[0082] in some embodiments, the at least one ester is propylene glycol dicaprate. In some embodiments, the at least one ester is 1,3- propanediol dicaprylate. in some embodiments, the at least one ester is glyceryl dilaisrate. In some embodiments, the at least one ester is acetylated glycol stearate. In some embodiments, the at least one ester is tricaprylin (caprylie triglyceride). In some embodiments, the at least one ester is tricaprin (capric triglyceride). In some embodiments, the at least one ester is PEG-6 caprylic/capne glycerides (such as GSyeerox™ 767HC from Croda). in some embodiments, the at least one ester is cocoglyeerides (a mixture of mono-, di- and tri- glycerides derived from coconut oil), in some embodiments, the at least one ester is glycerol caprylate caprate (which is a mixture of capric monoglycerides and caprylic monoglycerides). In some embodiments, the at least one ester is caprylic/capric/stearic triglyceride.

[0083] The composition may also further comprise one or more ingredients selected from vitamins, fatty alcohols, starches, silicas, essentia! oils, colorants, titanium dioxide, zinc oxide and mixtures of any two or more thereof. An example of a suitable vitamin is vitamin E (tocopherol acetate). An example of a suitable fatty alcohol is cetyl alcohol. Examples of silicas include thickening silica. Examples of essential oils which may be used as natural fragrances include lavender oil, apricot oil, bay oil, calendula oil, Aztec marigold oil, lemongrass oil, rose oil, lime oil, white grapefruit oil. Funher fragrances which may be used include natural lavender vanilla fragrance.

[0084] in some embodiments, the composition comprises zinc oxide, in certain embodiments, the zinc oxide is non-nano zinc oxide, i.e. the zinc oxide has an average particle size of greater than 100 mil Furthermore, in such embodiments, the zinc oxide is added to the compositions as a powder, not as a pre-fonned dispersion of zinc oxide in a carrier, in some embodiments, the zinc oxide may be present in the composition in a concentration of 10 to 30 weight %, from 15 to 25 weight %, from 18 to 23 weight %, or about 20 weight %, based on the total weight of the composition.

[0085] In some embodiments, the zinc oxide may be present in a concentration of 10 to 20 weight %, from 11 to 15 weight. %, or about 12 weight %, based on the total weight of the composition,

[0086] In some embodiments, the composition comprises: (i) 50 to 60 weight % of a combination of caprylie triglyceride and capric triglyceride, wherein the weight ratio of caprylic triglyceride to capric triglyceride is about 60:40; (it) 13.5 to 15 weight % beeswax; (iii) 1 to 3 weight % hydrogenated castor oil (e.g, Castor Wax MP80); (iv) 10 to 12.5 weight % sunflower oil; and (v) 10 to 22 weight % zinc oxide. The composition can alternatively consist of these materials. The composition can be a sunscreen or a diaper cream.

[0087] In certain embodiments, the composition comprises or consists of 20 weight % zinc oxide, 10 weight % sunflower oil, 53 weight % caprylie/capric triglyceride, 15 weight % beeswax, and 2 weight % hydrogenated castor oil. [0088] in certain embodiments, the composition comprises or consists of 20 weight % zinc oxide, 12.5 weight % sunflower oil, 52 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil.

[0089] in certain embodiments, the composition comprises or consists of 20 weight % zinc oxide, 12.1 weight % sunflower oil, 52 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, 2 weight % hydrogenated castor oil, and 0,4 weight % fragrance.

[0090] In certain embodiments, the composition comprises or consists of 12 weight % zinc oxide, 12.5 weight % sunflower oil, 60 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil.

[0091] in certain embodiments, the composition comprises or consists of 12 weight % zinc oxide, 1:2.5 weight % sunflower oil, 55 weight % caprylic/capric triglyceride, 13,5 weight % beeswax, 5 weight % shea butter, and 2 weight % hydrogenated castor oil.

[0092] in certain embodiments, the composition comprises or consists of 12 weight % zinc oxide, 12.5 weight % sunflower oil, 55 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, 5 weight % coconut oil, and 2 weight % hydrogenated castor oil.

[0093] In certain embodiments, the composition comprises or consists of 12 weight % zinc oxide, 12,5 weight % sunflower oil, 60 weight % caprylic/capric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil.

[0094] In certain embodiments, the composition comprises or consists of 12 weight % zinc oxide, 12,5 weight % sunflower oil, 52 weight % caprylic/capric triglyceride, 13,5 weight % beeswax, 5 weight % coconut oil, 3 weight % shea butter, and 2 weight % hydrogenated castor oil.

[0095] The composition can also be an antlperspirant or lip balm, in certain embodiments, the composition is not an antiperspirant or a lip balm.

[0096] The composition can be a sunscreen or a diaper cream.

[0097] in any of the above-described embodiments, the compositions may be formulated from all-natural ingredients, i.e. consist of na tural ingredients. EXAMPLES

Example 1

[0098] Various sunscreen compositions were formulated, in which the concentrations of caprylic/capric triglyceride, sunflower oil, beeswax and hydrogenated castor oil were varied. Some of these compositions also contained shea butter, tapioca starch, celyl alcohol or thickener silica,

[0099] These compositions were prepared as follows:

1. The beeswax, hydrogenated castor oil (Castor Wax MP 80), sunflower oil, and

triglyceride were combined in a suitable container. If used, the eery I alcohol, shea butter, or Natural Jelly SP51 1 were also added to the mixture in this step.

2. The mixture was heated to 80^C'C to melt the waxes, with mixing during heating to

maintain uniformity (using a bench-top IWK R.W16 basic lightening mixer and an axial blade propeller, with mixing speed dial set at 4),

3. When the waxes had melted and the mixture was clear (homogeneous/ uniform), zinc oxide was added and the mixing was continued for 10 minutes while maintaining the temperature at 80°C (with the mixing speed dial set at 4-5).

4. After 10 minutes mixing on the bench-top mixer, the mixture was homogenized at 5000 RPM for 10 minutes using a Silverson L4RT bench-top homogenizer.

5. The mixture was removed from the Silverson homogenizer after 10 minutes and moved back to the IWK lightening mixer,

6. As the mixture cooled and thickened, the mixing speed dial was adjusted, starting with dial setting 4-5 and then increasing to 7-8,

7. Mixing was continued while cooling to 25-28°C. If used, the silica or starch were added during cooling when the mixture reached a temperature of 50 to 55°C.

8. The mixture was then filled into the desired container .

[0100] The freeze-thaw stability of the compositions was also investigated. The freeze temperature was -10°C, and the thaw temperature was 25°C (at 60% relative humidity). The cycle of freezing and thawing (i.e. 24 hours of freezing followed by 24 hours of thawing) was repeated three times for each sample tested. Samples which failed this test had separated into two bulk phases. The viscosity of the compositions was also measured alter they had been subjected to the three cycles of freezing and thawing. [0101] The physical stability of each, composition at 49°C was also investigated (with a "fail" indicating separation into two bulk phases).

[0102] An assessment of the amount of white residue left on the skin following application was also carried out (indicated as "whitening acceptability" in Table 2).

[0103] The dispensing acceptability of the compositions was also assessed.

[0103] The greasiness and afterfeel acceptability of the compositions was also assessed,

[0103] Sunscreen compositions containing various amounts of caprylic/capric triglyceride, sunflower oil and waxes are shown in fable 2.

Table 2: Sunscreens. * denotes comparative composition. [0106] As can be seen from Table 2, only Compositions 8 and 1 1 were able to meet each, of the tests. Other compositions, such as 6 or 7, in which additional materials are added to achieve acceptable results for some of the other tests did not provide a composition that was able to meet ail five tests.

Example 2

[0107] The water activity of two sunscreen compositions was also measured using USP method <1112>. As discussed in this test method, formulas having a water activity of less than 0.6 do not support microbial growth.

[0108] The water activity of the two sunscreen compositions tested are shown in Table 3, below:

[0109] As can be seen from the above water activity results, the sunscreens do not support microbial growth.

Example 3

[0110] The Sun Protection Factor (SPF) of Composition #12 (formula as in Table 3, above) was tested on human skin using the procedure defined by the FDA Sunscreen. Final Rule; CFR Parts 201 and 310 [Docket No. FDA-1978-N-0018] (formerly Docket No. I978N-0038), R1N 0910- AF43, Labeling and Effectiveness Testing; Sunscreen Drug Products For 0ver~Tb.e-Coun.ter Human Use [FR Doc. 201 1-14766 Filed 16 June 201. 1 ; Publication Date 17 June 201 1 ] using a xenon arc solar simulator as the UV source. This test was conducted prior to and immediately following a» 80 minute water immersion experiment which was carried out under controlled conditions as described in the above-mentioned FDA Sunscreen Final Rule.

[01] I f When tested on ten subjects. Composition #12 yielded a mean SPF value of 36.03 (label SPF 34) prior to water immersion, and a mean SPF value of 35.01 (label SPF 34] following the 80 minute water immersion experiment.

[0112] It was further noted that Composition #12 of the present invention achieved 80 minutes of water resistance according to the test defined in 21 CFR 352/76, whereas each of the comparative commercial sunscreens as listed in Fable 4, below (each of which were SPF 30), only achieved 40 minutes of water resistance.

Table 4: Comparative commercial sunscreens with label ingredients

Example 4

[6113] Various diaper creams were also formulated, each of which contained 12 weight % zinc oxide, 13.5 weight % beeswax and 2 weight % hydrogenated castor oil. These formulations are shown in Table 5, below.

[0114] Each of these diaper creams contained the combination of beeswax and hydrogenated castor oil which was also present in sunscreen Composition 1 1.

Example 5

[0115] Composition 1 1 was compared against Commercial 1 for gloss after application to skin by 1 1 trained sensory panelists. The panelists assigned a score of 0 to 100 with 0 ^~ dull/flat to 100 :::: shiny/glossy. The .results of the panelists are averaged. The results are shown in Table 6 below.

[0114] As can be seen, the inventive composition 1 1 has a lower gloss as compared to Commercial 1 immediately and 20 minutes after application. This indicates that the composition is less greasy because there is less reflected light on the surface of the skin to create gloss.

Claims

WHAT IS CLAIMED IS:

1. An anhydrous personal care composition, comprising:

(a) at least one ester, wherein said at least one ester is selected from one or more of the following groups;

(i) triglycerides,

(ii) dsglyeerides,

(iii) monoglycerides,

(iv) rnonoesters of diols, and

( v ) diesters of diol s,

and wherein a total concentration of said at least one ester is 45 to 60 weight %, based on the total weight of the composition;

(b) a first wax having a melting point of 35°C to 72°C present in an amount of 5 to 25 weight %, based on the total weight of the composition;

(c) a second wax having a melting point of 73°C to 90°C present in an amount, of 0.5 to 10 weight % based on the total weight of the composition; and

(d) at least one plant oil having a saponification value of 150 to 275 mg KOH/g₅ wherein a total concentration of said at least one plant oil is from 5 to 35 weight %, based on the total weight of the composition.

2. The composition of any preceding claim, wherein the first wax comprises at least one wax chosen from beeswax, candelilla wax, bayberry wax, and combinations thereof.

3. The composition of any preceding claim, wherein the second wax comprises at least one wax chosen from hydrogenated castor oil, sunfloxver wax, camauha wax, rice bran wax, and combinations thereof.

4. The composition of any preceding claim, wherein the first wax is present in an amount of 8 to 18 weight % based on the tota l weight of the composition, optionally 1 1 to 15 weight

5. The composition of any preceding claim, wherein the second wax is present in an amount of weight 0.5 to 5 weight % based on the total weight of the composition, optionally 1 to 3 weight %.

6. The composition of any preceding claim, wherein, the first wax has a melting point of 38°C to 65°C, optionally 45*C to 65°C or 60°C to 65°C

7. The composition of any preceding claim, wherein the second wax has a melting point of 78°C to 85°C, optionally 77°C to 83°C.

8. The composition of any preceding claim, wherein the .first wax is beeswax and the second wax is hydrogenated castor oil.

9. The composition of claim 8, wherein the hydrogenated castor oil has a melting point of 77°C to 83°C, optionally 80°C.

10. The composition of any preceding claim, wherein the total concentration of the at. least one ester is from 50 to 55 weight %, based on the total weight of the composition.

1 1. The composition of any preceding claim, wherein the at least one ester is selected from: monogSycerides of capric acid; monoglycerides of caprylic acid; capric triglyceride; caprylic triglyceride; stearic triglyceride; monoesters of ethylene glycol and stearic acid; acetylated glycol stearate; glyceryl dilaurate; propylene glycol dicaprate; 1 ,3-propanediol dicaprylate; PEG-6 eapryiic/eapric glycerides; eocog!ycerides: and combinations thereof.

12. The composition of any preceding claim, wherein the at least one ester is a combination of caprylic triglyceride and capric triglyceride,

13. The composition of claim 12, wherein a weight ratio of caprylic triglyceride to capric triglyceride is from 70:30 to 50:50, optionally about 60:40,

14. The composition of any preceding claim, wherein the total concentration of the at least one plant oil is from 5 to 30 weight %, based on the total weight of the composition.

15. The composition of claim 14, wherein the total concentration of the at least one plant oil is from 8 to 30 weight %, based on the total weight of the composition.

16. The composition of claim 14. wherein the total concentration of the at least one plant oil is from 10 to 21 weight %, based on the total weight of the composition.

17. The composition of any preceding claim, wherein the at least one plant oil comprises at least one plant oil chosen from sunflower oil, high oleic sunflower oil, coconut oil, palm oil, sweet almond oil, castor oil. canola oil, soybean oil, avocado oil, olive oil, acai oil, andiroba oil, apricot kernel oil, argaa oil passion fruit oil, marula oil, mango oil, shea oil, macademia nut oil, brazil nut oil, borage oil, copaiba oil, grape seed oil, buriti oil, sesame oil, flaxseed oil, blueberry oil, cranberry oil, blackberry oil, plum oil, raspberry oil, babassu oil camelina oil, camellia oil, walnut oil, wheat germ oil. calendula oil, cherry kernel oil. cucumber seed oil. papaya oil, aloe vera oil, hemp oil, safflower oil, or a combination of any two or more thereof.

The composition of claim 17, wherein the at least one plant oil comprises at least one oil chosen from sunflower oil high oleic sunflower oil, coconut oil, hemp oil, avocado oil, olive oil, sesame oil, shea oil, safflower oil, argan oil, raspberry oil, or a combination of any two or more thereof.

The composition of any preceding claim, wherein the at least one plant oil has a melting pomt of -25°C to 30°C

The composiiion of any preceding claim, wherein the at least one plant oil comprises a plant oil which, has a saponification value of 150 to 200 nig KOH/g.

The composition of any preceding claim, wherein the ai least one plant oil is a plant oil which has a saponification value of 170 to 200 mg KOH/g.

The composiiion of any preceding claim, wherein the plant oil is sunflower oil, optionally high oleic sunflower oil.

The composition of any preceding claim, wherein the at least one plant oil is a combination of a first oil and a second oil, the first oil having a saponification value of 150 to 200 mg KOH/g and the second oil having a saponification value of 220 to 275 mg

KOH/g.

The composition of claim 23 , wherein the first oil is present at a concentration of 10 to 20 weight %, based on the total weight of the composition, and the second oil is present at a concentration of I to 10 weight %, based on the total weight of the composition.

The composition of claim 24, wherein the first oil is present at a concentration of 12 to 14 weight %, based on the total weight of the composition, and the second oil. is present at a concentration of 3 to 7 weight %, based on the total weight of the composition.

The composition of any one of claims 23 to 25, wherein the first oil has a melting point of -18°C to -5°C and die second oil has a melting point of 10°C to 25°C.

The composition of claim 26, wherein the first oil is sunflower oil and the second oil is coconut oil

The composition of any preceding claim further comprising a vegetable fat having a melting point of 3 1 °0 to 60°C. The composition of claim 28, wherein the vegetable fat is at least one material chosen from cocoa butter, shea butter, palm butter, tacoma butter, avocado butter, fcoktim butter, olive butter, shorea butter, manoi butter, coffee butter, soy butter, jojoba butter, cupuacu butter, mango butter, pistachio butter, pumpkin seed butter, brazil out butter, hemp seed butter, iflipe butter, murumuru butter, ucuuba butter, and combinations thereof

The composition of any one of claims 28 to 29, wherein the vegetable fat is present in a concentration of 1 to 10 weight %, based on the total weight of the composition.

The composition of any preceding claim farther comprising zinc oxide.

The composition of claim 3 1, wherein the zinc oxide is present in a concentration of 10 to

30 weight %, based on the total weight of the composition.

The composition of any preceding claim comprising (i) 50 to 60 weight % of a combination of caprylic triglyceride and capric triglyceride, wherein the weight ratio of caprylic triglyceride to capric triglyceride is about 60:40; (ii) 13.5 to 15 weight % beeswax; (in) I to 3 weight % hydrogenated castor oil; (iv) 10 to 12.5 weight % sunflower oil; and (v) 10 to 22 weight % zinc oxide.

The composition of claim 1 comprising one of:

a. 20 weight % zinc oxide, 10 weight % sunflower oil, 53 weight % capryiic/capric triglyceride, 15 weight % beeswax, and 2 weight % hydrogenated castor oil;

b. 20 weight % zinc oxide, 12.5 weisht % sunflower oil, 52 weight % capryiic/capric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil;

c. 20 weight % zinc oxide, 12.1 weight % sunflower oil, 52 weight % capryiic/capric triglyceride, 13.5 weight % beeswax, 2 weight % hydrogenated castor oil, and 0.4 weight % fragrance;.

d. 12 weight % zinc oxide, 12.5 weight % sunflower oil, 60 weight % capryiic/capric triglyceride, 13.5 weight % beeswax, and 2 weight % hydrogenated castor oil;

e. 12 weight % zinc oxide, 12.5 weight % sunflower oil, 55 weight % capryiic/capric triglyceride, 13.5 weight. % beeswax, 5 weight % shea, butter, and 2 weight % hydrogenated castor oil; f 12 weight % zinc oxide, 12.5 weisht % sunflower oil, 55 weight % capryiic/capric triglyceride, 13.5 weight % beeswax, 5 weight % coconut oil, and 2 weight % hydrogenated castor oil;

g. 12 weight % zinc oxide, 12.5 weight % sunflower oil, 60 weight % capryiic/capric triglyceride, 1.3.5 weight % beeswax, and 2 weight % hydrogenated castor oil; or

h. 12 weight % zinc oxide, 12.5 weight % sunflower oil, 52 weight % capryiic/capric triglyceride, 13.5 weight % beeswax, 5 weight % coconut oil, 3 weight % shea butter, and 2 weight % hydrogenated castor oil.

35. The composition of any preceding claim, wherein the composition is not an antiperspirant or a lip balm.

36. The composition of any preceding claira, wherein the composition is a sunscreen or a diaper cream.