Cosmetic gel composition having reduced skin irritation

Details Cosmetic gel composition having reduced skin irritation Cosmetic gel composition having reduced skin irritation

A - Human Necessities

61

K

A61K 7/32 (1995.01) A61K 7/48 (1995.01)

Patent

CA 2229787

Disclosed is a glycol-containing base gel composition having reduced skin irritation potential, in which a cosmetically active agent (e.g., deodorant active agent, sunscreen, antiperspirant active agent, etc.) can be incorporated to provide a cosmetic gel (e.g., soft gel or stick) composition. The gelling agent for the gel composition can be a soap. The base gel composition includes at least one glycol having a structure of the formula H(OC3H6)nOH, where n represents the number of repeating propylene oxide groups and ranges from 1-80, with the provisos that: (1) more than zero, and up to 100 % by weight, of the glycol component, has n=3 or 4; (2) less than 20 % by weight of the glycol component has n=1; (3) not more than 90 % by weight of the glycol component has n=2; and (4) not more than 90 % by weight of the glycol component has n greater than or equal to 5. The composition can further include a nonionic or anionic surface active agent as a clarifying agent, to provide a translucent or clear gel composition.

L'invention concerne une base pour un gel moins irritant pour la peau, qui contient du glycol et qui peut contenir un agent ayant une activité cosmétique (par exemple un agent déodorant, un filtre solaire, un agent antitranspiration, etc). Cette base sert à préparer des gels cosmétiques (par exemple des gels malléables ou des bâtons). L'agent gélifiant de la composition peut être un savon. La base contient au moins un glycol ayant une structure répondant à la formule H(OC¿3?H¿6?)¿n?OH, où n indique le nombre d'unités d'oxyde de propylène et sa valeur se situe entre 1 et 80. Ce glycol doit contenir (1) entre 0 et 100 % en poids de composés avec n = 3 ou 4; (2) moins de 20 % en poids du composé avec n = 1; (3) pas plus de 90 % en poids du composé avec n = 2; et (4) pas plus de 90 % en poids de composés avec n égal ou supérieur à 5. La composition peut, en outre, contenir un tensioactif non ionique ou anionique comme clarifiant, lorsqu'on veut avoir un gel transparent ou translucide.

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