Abstract:
A stable skin care composition containing about 0.0001% to about 50% of at least one retinoid booster, about 0.001% to about 10% of a retinoid; and a cosmetically acceptable vehicle, wherein the stable skin care composition is contained in a package so that the composition is out of contact with oxygen.
Abstract:
Cosmetic compositions containing organic sunscreens along with a 4-substituted resorcinol derivatives of general formula I exhibit improved storage stability and oxidative stability: where each R1 and R2, independently, represents a hydrogen atom, —CO—R (acyl group), —COO—R CONHR; where R represents saturated or unsaturated, linear, branched or cyclic C1-C18 hydrocarbon groups; and R3 represents (1) an alkyl group, having from 1 to 18 carbon atoms, preferably having from 2 to 12 carbon atoms, with or without substitution of one or more hydrogen atoms of a linear alkyl group with a methyl or ethyl group; e.g., R3 constitutes linear or branched chain alkyls, or (2) a group of the general formula formula (II) Where X is preferably H, n is 0 to 3 and the dashed lines represents an optional double bond.
Abstract:
A cosmetic product is provided packaged in a dispenser with separate first and second storage areas. The first of the areas contains a first cosmetic composition containing a first dermal active agent, preferably selected from keratolytic skin agents. Particularly preferred are alpha- and beta-hydroxy carboxylic acids as first dermal active placed in a composition having a pH from about 1 to about 5.5. The second area contains a second cosmetic composition with a second dermal agent incompatible with the first composition. Particularly preferred second dermal agents are retinoids, vitamins, enzymes and anti-oxidants. Most preferred is retinol. The dispenser allows transfer of the first and second compositions through an exit nozzle in a respective dispensing weight ratio of from about 30:1 to about 2:1.