Jason Thin to Thick Extra Volume Shampoo strengthens and adds volume to fine hair. It uses gentle botanical extracts to purify the scalp and thoroughly cleanse the hair of oil and dirt. Biotin and Panthenol are included in the formula to boost volume and increase hair elasticity so as to prevent breakage. The natural plant proteins add a natural bounce to your hair. Overall, your hair looks and feels thicker and has a natural, glowing shine. For best results, follow use with Jason Thin to Thick Extra Volume Conditioner. This product does not contain any parabens, SLS or phthalates.