Sunday Riley's Advanced-Strength Serum delivers a blend of retinoids and retinoid alternatives to fight signs of aging, and improves the look of congested skin. Benefits: Fights the signs of aging, Improves the look of congested skin, Improves the appearance of damaged skin, Balances and soothes skin, Calms the appearance of redness for a more even-toned complexion Vegetarian Cruelty-free Formulated without artificial fragrances, sulfates, parabens, gluten, soy, and phthalates Key Ingredients Retinol Ester Blend 5% + Liposome-encapsulated Retinol Blend 1% helps reduce the appearance of wrinkles and lines and encourages signs of clearer skin CoQ10 improves the appearance of aging or UV-exposed skin, for a healthier-looking, balanced complexion Hawaiian White Honey, Bisabolol, Cactus Extract, and Ginger balance and soothe the skin