The latest innovation in color care, Redken's Acidic Color Gloss Shampoo is a revolutionary sulfate-free shampoo that infuses hair with shine while maintaining a healthy pH for extended color vibrancy. This sulfate-free shampoo protects color vibrancy and shine for up to 32 washes*. The acidic pH formula with amino acids and vitamin E helps seal the cuticle and lock in shine, delivering 72% shinier hair in 1 use**. Use as a complete routine with Acidic Color Gloss Conditioner and Heat Protection Leave-In Treatment. *Self-perception analysis, 51 haidressers, after 32 applications of the shampoo conditioner on coloured hair **Instrumental test after application of the acidic color gloss shampoo & conditioner vs. unwashed hair BEST FOR • Professionally, color-treated hair • Dull, virgin hair • All hair types and textures KEY BENEFITS: • Protects color vibrancy and shine for up to 32 washes* • Acidic pH formulas seal cuticle lock in shine for 72% shinier hair in 1 use** • Sulfate-free cleansing• Hair looks & feels revitalized instantly THE TECHNOLOGY The acidic pH formula with amino acids and vitamin E help seal the cuticle and lock in shine to protect color from fading and dulling that may be caused by water and heat. THE SCIENCE INSIDE • Sulfate-free • Vitamin E • Arginine • Serine • Glutamic Acid • Soybean Oil *Self-perception analysis, 51 haidressers, after 32 applications of the shampoo conditioner on coloured hair **Instrumental test after application of the acidic color gloss shampoo & conditioner vs. unwashed hair