The Synergistic Antioxidate Effect of Ascorbyl 2-Phosphate and Alpha-Tocopheryl Acetate
By: Axel Jentzsche and Harald Streicher, BASF AG; and Karin Engelhart, BioTeSys GmbH
Posted: May 6, 2003, from the June 2001 issue of Cosmetics & Toiletries.
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Article Keywords:
- antioxidants
- vitamin C
- vitamin E
- tocopheryl acetate
- sodium ascorbyl phosphate
- photoaging
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The use of antioxidants in cosmetics has a long history. Two different modes of application can be distinguished. They are used either to stability the cosmetic formulation or to protect the skin.
As a formulation stabilizer, they serve as a "technical antioxidant." Here they are being used to prevent the oxidative deterioration of labile ingredietns such as unsaturated fatty acids or oxidation-prone active ingredeitns. Both synthetic compounds like butylated hydroxytoluene and natural antioxidants like alpha-tocopherol are frequently used for this purpose.
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