Читать книгу Cosmeceuticals - Группа авторов - Страница 40

No evaluation of cosmeceuticals is complete without a brief discussion of ingredient challenges. Cosmeceutical formulation involves the careful selection of ingredients to produce a safe, elegant, efficacious product suitable for patient purchase [17]. Many considerations go into a final formulation including moisture barrier effects, pH, lubricating action, soothing effects, osmotic effects, emolliency, and percutaneous absorption [18]. Some of the more controversial ingredients that go into cosmeceuticals include preservatives, herbal additives, and biologic additives.