| abstract |
PROBLEM TO BE SOLVED: To improve the appearance of keratinous substances such as skin, hair, eyelashes and nails, especially signs of skin aging and / or dull skin color and / or abnormal skin or hair pigmentation And / or beauty for preventing or treating skin dryness and / or seborrhea and / or seborrhea-related defects and / or sensitive skin and / or dandruff and / or natural hair loss and / or baldness Provide a processing method. SOLUTION: A 7-oxo-dehydroepiandrosterone (DHEA) derivative is applied to a keratin substance. |