SkinMedica's Age Defense Retinol Complex 0.5 enhances the skin's texture to promote a brighter, more youthful complexion. Formulated for skin tolerant to retinol treatments, it stimulates collagen production and enhances faster cell renewal to minimize the appearance of fine lines and wrinkles. Algae extract ensures skin is soft, hydrated and protected against free-radical damage.Key Ingredients:Retinol: smooths and refines skin's texture and enhances radiance PhytoShield™ Complex: an antioxidant complex, enhances skin texture and minimizes irritationKey Benefits:Enhances skin tone, texture, and resiliencyDiminishes appearance of fine lines and coarse wrinklesAppropriate for all skin types pre-conditioned by using Retinol Complex 0.25 or another retinoid product