Vault Color-Lock Leave-In Conditioner contains chloride patented UV absorber that is small enough to penetrate the hair, allowing it to protect both the cuticle and the cortex from UV-B damage. Proven to preserve the natural and synthetic color of the hair and fight against the sun that can fade color. Alanine, Arginine, Praline, Serine, Threonine amino acid complex strengthens the hair shaft, smooths the cuticle, boosts hair elasticity and keeps colors vibrant. Sodium coyly amino acids, potassium dimethazone peg-7 panthenyl phosphate heat activated complex that restructures and protects stressed hair from keratin breakdown and cuticle damage. Restores shine and smoothness to hair making it look and feel healthy again.