Transform your hair care routine with Redken's Acidic Color Gloss Shampoo Refill Pouch. This sulfate-free shampoo enhances color vibrancy and delivers stunning shine. Infused with a pH formula and Acidic Shine Complex, it strengthens hair and protects against dulling agents. Enjoy a gentle lather that prevents color fading and provides up to 72 hours of moisture. To use, apply to wet hair, lather, and rinse. Easily refill your bottle by opening the pouch and squeezing the shampoo into your container.