Biolage Scalpsync Calming Shampoo Ltr WHAT IT IS A gentle shampoo, infused with fermented tea and glycolic acid, that helps to cleanse and calm the scalp. WHAT IT DOES Gently cleanses, calms and balances scalp to help prevent dryness and tightness from lack of moisture. Gently cares for hair making it smooth and more manageable with healthier-looking scalp.