| abstract |
An oral pharmaceutical, or food or drink, or feed, or food additive or feed additive, for the prevention or treatment of dry skin accompanying atopic dermatitis, xeroderma, hand roughening, skin roughening, etc. There is provided an oral pharmaceutical, or food or drink, or feed, or food additive or feed additive, for the prevention or treatment of dry skin, wherein hydroxyproline or an N-acylated derivative, especially an N-acetylated derivative, N-propionylated derivative, N-butyrylated derivative or isobutyrylated derivative of hydroxyproline, or a salt thereof is contained as an active ingredient. |