JASON Thin to Thick Extra Volume Shampoo uses gentle botanical surfactants to thoroughly purify the scalp & cleanse the hair of dirt & oil. Hair-strengthening Biotin & Panthenol wrap around the entire hair shaft to boost volume & increase hair cortex elasticity for less breakage. Natural plant proteins add luster & bounce. Your hair looks & feels naturally thicker, with a healthy shine. Fortified with Biotin, panthenol & Natural Proteins. No Parabens, SLS or Phthalates.