| abstract |
(57) [Abstract] [Problem] To prevent fine wrinkles and rough skin due to aging of the skin, (EN) Provided is a skin cosmetic having an improved skin beauty effect such as moisturizing and smoothing the skin. SOLUTION: The following general formula (1): [In the formula, R 1 and R 2 are alkyl groups having 1 to 6 carbon atoms, and when R 1 is a hydrogen atom, R 2 is an alkyl group having 1 to 10 carbon atoms and A is hydrogen. Atom, alkali metal, ammonia or organic amine], which is a skin cosmetic containing at least one adenosine 3 ′, 5′-cyclic phosphoric acid derivative as an active ingredient. |