The PrX 3-Day Transformation is an intensive leave-in treatment that provides immediate results. Each vial contains a dual-phase formula that, once activated, deeply nourishes and instantly revitalizes lifeless hair. In just three uses, damage is transformed, leaving hair visibly smooth, shiny and soft to the touch. Features and benefits: - Dual-Action Technology: Specially developed by Frédéric Fekkai and his team of experts to provide the latest reparative care to hair by combining keratin protection that works at the foundation of hair and damage restoration to restore external texture and resilience. - Reinforces weak spots along the hair fiber where keratin loss has occurred. - Creates a protective shield that defends against styling and chemical damage. - Helps prevent keratin loss before damage is even visible. - Rich, luxurious emollients are deposited to restore softness and smoothness. - Strengthens against hair breakage to help prevent future damage. How to use: After washing and before styling, shake a vial to blend. Spray evenly through towel-dried hair and leave in. Repeat for three consecutive days. 1.5 oz each. By Fekkai.