| 摘要 |
PURPOSE: A cosmetic composition comprising polyethoxylated letineamide derivatives is provided for inhibiting aging of the skin. CONSTITUTION: A cosmetic composition comprises polyethoxylated letineamide derivatives of the following formula I in the range from 0.001 to 50 wt %, preferably 0.01 to 20 wt %, wherein R is hydrogen or C1-6 alkyl group, and n is an integer of 2 to 100; anti-oxidant agents selected from the group consisting of water-soluble Kosan Hongkyungchun extract, nordihydroguaiaretic acid, fat-soluble tocopherol, tocopherol acetate, butylhydroxytoluene, and butylhydroxyanisole in the range from 0.01 to 5 wt %; divalent ionic metal salts selected from the group consisting of magnesium hydrogen sulfate, magnesium stearic acid, magnesium acetylsalicylic acid, calcium acetylsalicylic acid, calcium hydroxide, barium hydrogen sulfate, zinc hydrogen sulfate, strontium chloride, and strontium bromide in the range from 0.001 to 5 wt %.
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