| abstract |
PURPOSE:A cosmetic that contains N-acyllysine in the form of powder, thus being suitably used in white powder, white powder stick, body powder, baby powder, foundation and tooth paste, because of its good adhesion to skins, covering power and high absorption of secretions. CONSTITUTION:The objective cosmetic contains at least one of N-actyllysines of formula I -III (RCO is aliphatic acyl of 8-22 carbon atoms; R'CO, R''CO are aliphatic acyls of 1-22 carbon atoms, respectively and totaling 9-44 in carbon atoms) in the form of powder. N-acyllysine is hard soluble in water, squallane, fluid paraffin and other solvents without swelling to keep itself in its stable form and is calm to skins. Change in their carbon number and acyl group number can control the hydrophilic and hydrophobic properties, smoothness adhesion to skins and skin-covering power of N-acyllysines. |