Patent ID: 6949247

Claim:
A stable skin care composition containing: about 0.00001% to about 50% of alpha-ionone; optionally, about 0.00001% to about 50% of at least one retinoid booster selected from the group consisting of citral, cocomide DEA, coumarin, 1,3-dimethyl 2 imidazolidinone, geraniol, 8 OH quinoline, N laury sarcosine, linoleamide DEA, linoleic acid, linseed oil; about 0.0001% to about 50% of at least one retinoid booster selected from the group consisting of ketoconazole, miconazole, 2-hydroxyquinoline, and combination thereof; about 0.001% to about 10% of a retinoid selected from the group consisting of retinyl esters, retinol, retinal, and mixtures thereof; 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; and wherein said package is made out of aluminum; thereby alleviating additional retinoid instability contributed by said boosters.