Obagi Men Kits come with a a protocol card detailing each products ingredients and how / when to use them. Obagi-C C-Cleansing Gel: removes impurities helps calm the skin is hypoallergenic very soothing – suitable for even the most sensitive of skin types Obagi Professional-C Serum 10% L-ascorbic Acid: mild pigment suppression hydration improvement of fine lines and wrinkles stimulation of collagen protects the skin from free radicals Retinol 1.0 (encapsulated Vitamin A): hydrating helps restore a more radiant, youthful complexion boosts cellular turnover anti-ageing OBAGI360 HydraFactor SPF30: light weight non-chalky moisturising assists in preventing premature ageing defends against harmful UVA/UVB rays