Promoter for production of nitric oxide or nitric oxide synthase, and cosmetic or pharmaceutical composition comprising the same

摘要

In the present application are disclosed a promoter for the production of nitric oxide or nitric oxide synthase in a living body, comprising, as active ingredient(s), at least one selected from pyrrolidonecarboxylic acid, a pyrrolidonecarboxylic acid salt, or a pyrrolidonecarboxylic acid derivative, or arginine in addition thereto, as well as a cosmetic or pharmaceutical composition comprising the same.