You are looking at 1oz of Retinol 2.5% Skin Softening and Healing Serum. Retinol is one of the only skin care ingredients proven in peer-reviewed scientific papers to improve mottled pigmentation, reduce fine lines and wrinkles, and improve skin tone.* It is a staple of skin care, and is referred to on the official Dr. Oz website as ""still, hands down, the best thing you can put on your skin to fend off those first signs of aging." Our 2.5% serum comes at the highest recommended dose. Most other serums, including ones that are much more expensive, only come at a 1% dose or less. Additionally, we include Hyaluronic Acid and other ingredients to improve the penetration of the Retinol. Our product is 95% natural and 72% organic, so you can be sure you're not putting harmful synthetic chemicals in your body. All of our products are -sulfate, -paraben, and animal testing free.