Retinol is a form of vitamin A and is the number one anti-aging ingredient prescribed by dermatologists. Jeva's 2.5% retinol serum is more concentrated than most and works deeply and powerfully to combat wrinkles, crow's feet uneven skin tone, spots and fine lines, and restores skin's elasticity and youthfulness. It improves skin hydration level and is a potent antioxidant that defends your skin from free radicals. This retinol serum works on a molecular level to repair skin and stimulate collagen resulting in firmer, smoother and younger looking skin. NO Parabens, NO Sulfates.