| abstract |
A collagen metabolism ameliorant containing N-methyl-L-serine as an active ingredient, which is efficacious against collagen hypometabolism caused by aging or diseases accompanied with an abnormal cumulation of collagen, such as hepatic and pulmonary fibroses, keloid, hypertrophic scar, scleroderma, or fibrosis in the scalp. It is used as an active ingredient of a hair growth stimulant and a skin aging inhibitor. |