Skin collagen production promoter

摘要

The purpose of the present invention is to provide a skin collagen production promoter which has no problem in safety. Another purpose of the present invention is to provide a food or drink for promoting skin collagen production and a cosmetic for promoting skin collagen production, said food or drink and cosmetic containing the aforesaid substance. TGF-&bgr; and/or a TGF-&bgr; digestion product, which is obtained by digesting TGF-&bgr; with a protease such as pepsin, pancreatin, etc., are used as a skin collagen production promoter or the active ingredient of a food or drink for promoting skin collagen production and a cosmetic for promoting skin collagen production. The aforesaid TGF-&bgr; and/or TGF-&bgr; digestion product have an effect of increasing the collagen content of the skin.