Provide incredible protection for your hair with this double-action pH neutraliser and cuticle sealer. It works as an acidifier to smooth and tighten hair cuticles while retaining curl and colour. The low pH formula reduces hair swelling caused by chemical treatments, and deactivates and removes ammonia and peroxide residues as well as perm odours. This treatment contains a quadramine complex and is enriched with essential amino acids that offer maximum protection. It ensures reconstructive benefits from the hair cuticle to the cortex.