Disclosed are treatment compositions adapted for application to mammalian skin, which treatment compositions are effective initiators for the generation of human keratinocytes on or within the treated skin, particularly in the locus of the skin wherein the treatment composition has been applied, which treatment composition comprises benzoin and an olive oil extract which contains hydroxytyrosol and/or hydroxytyrosol. In certain preferred embodiments the benzoin and the olive oil extract and/or hydroxytyrosol are microencapsulated.
