| abstract |
PROBLEM TO BE SOLVED: To provide a personal care composition and method having a more durable conditioning and protective effect to compensate for the loss of surface lipid monolayer and stratum corneum from hair fiber and skin, respectively. An active substance having one or more functional groups that can be covalently bonded to one or more complementary functional groups in the presence of an acid or base, a photocatalyst capable of generating an acid or base upon exposure to light And a physiologically acceptable excipient for dispersing or dissolving the active substance for applying the composition to the substrate and a photocatalyst, wherein the excipient is a physiologically acceptable excipient. And the substrate is selected from the group consisting of hair, skin, nails, teeth and combinations thereof. [Selection] Figure 1 |