Kristin Ess Signature Hair Gloss in Chocolate Cosmo is a shine-boosting and tone-enhancing in-shower treatment designed for dark brown, color-treated, or natural hair. This silicone-free and ammonia-free formula instantly adds vibrancy and depth to your hair color, keeping it fresh and healthy between salon visits. The easy-to-use application process involves mixing two bottles, applying the mixture, and rinsing after 10-20 minutes. With vibrancy-boosting technology and an antioxidant complex, this hair gloss creates a protective shield over your hair, locking in color and leaving your hair smooth and shiny from root to tip.