Personal care compositions and methods for using such compositions
The present invention relates to a cosmetic cleansing composition comprising at least: a) one or more vegetable oil(s), in an amount of at least 0.3 pbw relative to the total weight of the composition, b) from about 2 pbw to about 40 pbw, relative to the total weight of the composition, of a surfactant system comprising at least one sultaine surfactant and one taurate surfactant, and c) at least 0.1 pbw, relative to the total weight of the composition, of a non-ionic solubilizer which is a mono- or poly-alkyl or alkenyl ester of an alkoxylated fatty acid.
1 . A cosmetic cleansing composition comprising at least:
a) one or more vegetable oil(s), in an amount of at least 0.3 pbw relative to the total weight of the composition,
b) from about 2 pbw to about 40 pbw, relative to the total weight of the composition, of a surfactant system comprising at least one sultaine surfactant and at least one taurate surfactant, and
c) at least 0.1 pbw, relative to the total weight of the composition, of a non-ionic solubilizer which is a mono- or poly-alkyl or alkenyl ester of an alkoxylated fatty acid, with said fatty acid being a saturated or unsaturated hydroxylated C8-C22 fatty acid.
2 . The composition of claim 1 , wherein the sultaine surfactant is of formula:
where m is 2 or 3, or variants of these in which —(CH 2 ) 3 SO 3 − is replaced by:
where R 1 is a substituted or unsubstituted alkyl or alkenyl group having 7 to 22 carbon atoms, and R 2 and R 3 are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 6 carbon atoms.
3 . The composition of claim 2 , wherein the sultaine surfactant is of formula:
where R 1 is a residue of a fatty acid, and R 2 and R 3 are each independently alkyl of 1 to 6 carbon atoms.
4 . The composition of claim 1 , wherein the sultaine surfactant is present in an amount ranging from 0.1 to 10 pbw relative to the total weight of the composition.
5 . The composition of claim 1 , wherein the taurate surfactant is one methyl alkyl taurate of formula R a CON(CH 3 )CH 2 CH 2 SO 3 X a , in which R a is a linear or branched alkyl group or alkenyl group having 6 to 30 carbon atoms, and X a is a counterion.
6 . The composition of claim 1 , wherein the taurate surfactant is present in an amount ranging from 0.1 to 10 pbw relative to the total weight of the composition.
7 . The composition of claim 1 , wherein the solubilizer is a mono- or poly-alkyl or alkenyl ester of an alkoxylated fatty acid, with said fatty acid being an unsaturated hydroxylated C8-C22 fatty acid.
8 . The composition of claim 1 , wherein the solubilizer is a mono- or poly-alkyl or alkenyl ester of an alkoxylated fatty acid, wherein the alkyl or alkenyl ester moiety derives from fatty acids having from about 8 to about 40 carbon atoms.
9 . The composition of claim 1 , further comprising at least one conditioning agent.
10 . The composition of claim 1 , further comprising at least one additional oil.
11 . The composition of claim 1 , wherein the weight ratio between the vegetable oil and the solubilizer ranges from 1:5 to 5:1.
12 . The composition according to claim 1 , comprising less than 3 pbw of electrolytes, relative to the total weight of the composition.
13 . A method, comprising simultaneously caring for and washing keratinous materials using the composition of claim 1 .
14 . The composition of claim 3 , wherein R 2 and R 3 are each methyl groups.
15 . The composition of claim 5 , wherein R a is a linear or branched alkyl group or alkenyl group having 8 to 22 carbon atoms.
16 . The composition of claim 1 , wherein the solubilizer comprises from 5 to 50 C2-C4 alkylene oxide units.
17 . The composition of claim 9 , wherein the conditioning agent is a cationic or ampholytic conditioning agent.
18 . The composition of claim 10 , wherein the at least one additional oil is selected from the group consisting of silicone and mineral oils.
19 . The method of claim 13 , wherein keratinous materials are hair or skin.
20 . The composition of claim 1 , wherein the surfactant system consists of at least one sultaine surfactant and at least one taurate surfactant.
21 . The composition of claim 1 , wherein the composition is transparent.
22 . The composition of claim 21 , wherein the composition has a light transmittance value of greater than or equal to 85%, wherein the light transmittance value is measured at 600 nm in a 2.5 ml polystyrene cell, 10×10 mm, using a UV/VIS spectrometer Lambda Bio 40.
23 . The composition of claim 1 , having an absence of silicone oil, and having an absence of mineral oil.
24 . The composition of claim 1 , wherein weight percent of the vegetable oil in the composition is greater than weight percent of any silicone oil, any mineral oil, any cationic conditioning agent, and any ampholytic conditioning agent optionally present in the composition.
25 . The composition of claim 24 ,
wherein the vegetable oil comprises at least one member of the group consisting of sunflower oil, avocado oil, jojoba oil, maize oil, sweet almond oil, soybean oil, cucumber oil, grape seed oil, sesame oil, hazelnut oil, palm oil, castor oil, walnut oil, coconut oil, apricot oil, olive oil, kukui oil, cashew nut oil and purcellin oil;
wherein the sultaine surfactant is of formula:
where R 1 is a residue of a fatty acid, and R 2 and R 3 are each independently alkyl of 1 to 6 carbon atoms,
wherein the sultaine surfactant is present in an amount ranging from 0.1 to 10 pbw relative to the total weight of the composition;
wherein the taurate surfactant is a methyl cocoyl taurate or a methyl oleoyl taurate,
wherein the taurate surfactant is present in an amount ranging from 0.1 to 10 pbw relative to the total weight of the composition,
wherein the solubilizer is a mono- or poly-alkyl or alkenyl ester of an propoxylated fatty acid, wherein the alkyl or alkenyl ester moiety derives from fatty acids having from about 8 to about 40 carbon atoms,
wherein the composition is transparent, wherein the composition has a light transmittance value of greater than or equal to 85%, wherein the light transmittance value is measured at 600 nm,
comprising less than 1 pbw of electrolytes, relative to the total weight of the composition.