Nioxin 3D Expert Color Lock Color Seal Treatment 4.8 oz10131 seals the cuticles and locks color pigments into the hair immediately after the hair-coloring process. Color Lock is a density treatment exclusively for in-salon use. It neutralizes alkaline and peroxide residues without weighing down the hair.
Features:
- Density treatment that neutralizes residues
- Seals-in the color
- Strengthens the hair to prevent breakage