Redken Acidic Color Gloss Activated Glass Gloss is a professional at-home glossing treatment for color-treated hair. It deeply conditions and adds intense shine at the molecular level. With a pH-balanced formula containing citric acid and apricot oil, this pre-activated ultra-acid formula helps seal the cuticle and lock in shine.

After shampoo, apply to wet hair, leave on for 5 to 10 minutes and rinse.