Gem Lites colorwash Cognac Quartz Shampoo , 8.25 oz. Celeb's Gemlites line, Cognac Quartz Colorwash Shampoo provides an alternative, renewing and strengthening the shine and luster of color treated hair while protecting the innate beauty and integrity of each lock. Ideal for medium blonde to light brown hair, with or without highlights, Gemlites shampoo creates a lush lather that fights against yellow and bleached tones while bolstering hair, locking in moisture and reducing frizz to promote soft, buoyant and resilient locks. The key to Gemlites Colorwash Shampoo is its panthenol and phytantriol-based blend of nutrients, 100% vegan and free of harsh chemicals like sulfates, peroxides, ammonia, PPD and parabens as well as being designed without animal testing. A single wash produces noticeable results, and regular use gives you salon-quality hair with no oils or grease, no treatment-induced damage, and a look you can feel good about. How to use. Apply to wet hair for 2-5 minutes. Rinse. Repeat for more color Intensity. Pair with Celeb Luxury Colorditioner.