摘要:
The invention relates to the use of specific ascorbic acid derivatives for dyeing keratin-containing fibers or as direct dyes for the preparation of a composition for dyeing keratin-containing fibers, and to methods for dyeing keratin-containing fibers, in particular for dyeing human hair.
摘要:
The invention relates to the use of α-amino acid derivatives for improving the solubility of sparingly soluble substances in water or aqueous solutions, and to mixtures and preferred compositions.
摘要:
The invention relates to the use of specific ascorbic acid derivatives for dyeing keratin-containing fibres or as direct dyes for the preparation of a composition for dyeing keratin-containing fibres, and to methods for dyeing keratin-containing fibres, in particular for dyeing human hair.
摘要:
The invention relates to the use of α-amino acid derivatives for improving the solubility of poorly soluble substances in water or aqueous solutions and to mixtures and preferred preparations.