The Sebastian Professional Dark Oil Lightweight Shampoo for Smooth Shiny Hair gently cleanses while enhancing natural body and shine, leaving hair feeling silky soft without weighing it down. Infused with a nourishing blend of jojoba and argan oils, the formula removes impurities and excess oils, while maintaining visible moisture balance, perfect for all hair types. When used as part of the Dark Oil routine with the matching conditioner or hair mask, the formula leaves hair up to three times smoother, delivering noticeable softness and radiance for salon-worthy results.