Advanced anti-aging complex combines retinyl palmitate, Vitamin C, and a peptide, Prolifersyn to help diminish the appearance of fine lines and wrinkles, and firm the skin. Retinol and peptides target the dermal layer for more complete skin repair and rejuvenation. It also gently exfoliates dead skin and helps smooth the skin's texture. Best applied at night to a clean face and followed by your Agera Moisturizer. All Skin Types, especially Mature Skin