| 摘要 |
Moisture of the skin, skin lipid balance and skin smoothness can be improved by administering an oral composition containing, as active ingredients, proteins and/or protein hydrolysates wherein the total proteins and hydrolysates contain at least 2 wt. % of cysteine residues. Preferably, the hydrolysates have an average molecular weight of between 200 and 4000 Dalton. The composition is administered in such an amount that between 25 and 500 mg of cysteine per day is supplied.
|
