| abstract |
A skin preparation for external use, e.g., a cosmetic lotion, cream, or milk lotion and a cosmetic hair preparation, e.g., a hair cream, hair conditioner, rinse, or shampoo, which are characterized by containing an N-glycerylamino acid derivative obtained by reacting a neutral, basic, or acidic α-amino acid or a salt thereof with glycidol or a 3-halo-1,2-propanediol. They are excellent in moisture retention, applicability, stability, and safety. |