| 摘要 |
The invention relates to cosmetic formulations which contain: a) one or more compounds selected from the compounds of formulas (Ia) and (Ib), to the physiologically compatible salts of compounds of formulas (Ia) and (Ib), and to the stereoisomeric forms of the compounds of formulas (Ia) and (Ib), whereby R<1>, R<2>, R<3>, R<4> and n have the meanings cited in Claim Nr. 1, and b) one or more substances selected from enzymes, vitamins and vitamin derivatives. The compounds are characterized in that the enzymes, vitamins and/or vitamin derivatives contained in the cosmetic formulation are stabilized and are safeguarded against denaturation.
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