Back to Course Cosmetic Active Ingredients 0% Complete 0/0 Steps Introduction to Active Ingredients 4 Videos Course introduction What are active ingredients? The active ingredient market Investigating popularity of active ingredients Skin Care Actives 16 Videos | 1 Quiz The biology of skin More skin biology Primary problems of skin Where skin actives work on skin Probiotics Hydroxyacids Humectants Amino Acids Ceramides Antioxidants Niacinamides Retinoids Peptides Hyperpigmentation Skin Penetration enhancers Summary of skin actives Skin actives final quiz Hair Care Actives 5 Videos Introduction to hair biology Actives to treat hair loss Actives to treat hair color Actives to treat dandruff Hair actives summary Active ingredient and formulating Cosmetic Active Ingredients Active ingredient and formulating Lesson 4 of 4 In Progress ← Previous Active ingredient and formulating Perry44