Thickens existing hair so it’s like you have up to 6,500 more hair strands*. Works on the surface of each hair strand for natural-looking hair with fullness that lasts, adding thickness to existing hair fibers. Signs or changes you may experience as you use this treatment* (*vs. untreated): less hair in your brush due to breakage, more texture for hair that is less limp, natural-looking hair with fullness that lasts, and hair that is more supple and easier to manage. Incorporate into your daily ritual and notice instantly fuller-looking and thicker-feeling hair. Created with Olay Anti-Aging Experts.