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US 2003/0157040 A1Published application
Use of ectoine or ectoine derivatives in cosmetic formulations
AssigneeMerck Patent GmbH
InventorsJoachim Bunger, Hans-Jurgen Driller
Life of this patent
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Abstract
The invention relates to the use of one or more compounds selected from the compounds of formulas (Ia) and (Ib), their physiologically compatible salts and their stereoisomeric forms, where R1, R2, R3, R4 and n have the meanings given in claim no. 1, for the preparation of a cosmetic formulation. Said use is advantageous in protecting and stabilizing the nucleic acids of human skin cells.
Claims19
Use of one or more compounds chosen from the compounds of the formulae Ia and Ib
- 4
- the physiologically compatible salts of the compounds of the formulae Ia and Ib, and the stereoisomeric forms of the compounds of the formulae Ia and Ib, where
- R1 is H or alkyl,
- R2 is H, COOH, COO-alkyl or CO—NH—R5,
- R3 and R4 in each case independently of one another are H or OH,
- n is 1, 2 or 3,
- alkyl is an alkyl radical having 1 to 4 carbon atoms, and
- R5 is H, alkyl, an amino acid radical, dipeptide radical or tripeptide radical for the preparation of a cosmetic formulation for the protection and stabilization of nucleic acids of human skin cells.
5 more elements
Cosmetic formulation comprising
- a) one or more compounds chosen from the compounds of the formulae Ia and Ib
- 5
- the physiologically compatible salts of the compounds of the formulae Ia and Ib, and the stereoisomeric forms of the compounds of the formulae Ia and Ib, where
- R1 is H or alkyl,
- R2 is H, COOH, COO-alkyl or CO—NH—R5,
- R3 and R4 in each case independently of one another are H or OH,
- n is 1, 2 or 3,
- alkyl is an alkyl radical having 1 to-4 carbon atoms, and
- R5 is H, alkyl, an amino acid radical, dipeptide radical or tripeptide radical and
- b) one or more UV filters.
7 more elements
Dependencies are inferred from the claim text.