Works inside and out to repair texture and to add epic shine with the Color Wow Pop & Lock. Loaded with re-lubricating humectants, 75% of the formula works inside the hair to help restore elasticity and suppleness. Then, the serum portion of the formula wraps around the outside of the hair, forming a crystal clear, high-gloss sheath to lockdown the cuticle and lock in the lubricants. Hair colour pops, texture is transformed.