| 摘要 |
PURPOSE:To obtain a cosmetic having excellent nutrition effect and skin beautifying effect and high stability, by kneading L-ascorbic acid or its fatty acid ester with an oil, and compounding the kneaded product with a weakly acidic O/W-type emulsion emulsified with a nonionic surface active agent. CONSTITUTION:L-Ascorbic acid or its fatty acid ester (e.g. monopalmitate) is kneaded with an oil at a weight ratio of 1:0.5-4, and the kneaded poduct is compounded to a wealky acidic O/W-type emulsion emulsified with a nonionic surface active agent, to obtan the objective cosmetic. L-ascorbic acid can be kept extremely stably in the above cosmetic because it is used as a kneaded product with an oil. The oil for forming the kneaded product is preferably the one having strong hydrophobic property, e.g. silicone oil, liquid paraffin, castor oil, olive oil, etc. The amount of L-ascorbic acid or its ester is 1-10wt% based on the cosmetic. |
