Hydrate reinvigorates tired strands and moisturizes hair. Made with natural oils that enhance manageability and shine, this sulfate free formula hydrates hair and leaves supple, smooth and frizz-free hair. Hydrate Sheer Shampoo: This concentrated, but lightweight, moisturizing shampoo from Pureology is Silicone-Free to avoid weighing hair down, and is infused with a signature aromatherapy blend of Peppermint and Corn Mint Essential Oils.