| 摘要 |
Unnatural, hygroscopic amino acids are useful to enhance the moisture retention and uptake properties of skin. In particular, such amino acids are N-hydroxyserine, N- hydroxyglycine, L-homoserine,alpha-hydroxyglycine, 2-(aminooxy) -2-hydroxyacetic acid, 2-hydroxy-2-(hydroxyamino) acetic acid, 2- (aininooxy)acetic acid, and combinations thereof. |
