ABSTRACT
Skin-feel additives are substances conferring sensorial properties to a skincare product, triggering pleasant perception during application to the skin and after use. Effectiveness of sensory triggers is governed by their substantivity to the skin which occurs either by hydrophobic interaction, charge attraction, or a combination of these two factors. A large variety of cosmetic ingredients function as skin-feel/conditioning additives, comprising lipophilic materials, silicones, water-soluble polymeric substances (including proteins) and their cationic derivatives, and humectants, among others. The Cosmetic, Toiletry and Fragrance Association (CTFA) divides skin conditioning agents into various groups: emollients, occlusive materials, and miscellaneous substances including among others, cationic macromolecules and several surfactants.
