Biolage Scalp Sync Purifying Scalp Concentrate is a targeted pre-shampoo treatment formulated to rebalance and purify the scalp, effectively removing buildup, excess oil, and impurities from all scalp types, including sensitive ones. This rinse-off concentrate, enriched with exfoliating glycolic acid and nourishing black tea ferment, works to gently cleanse and refresh the scalp, promoting a healthier environment after just one use. Apply this concentrate to the scalp before shampooing to optimise its purifying and rebalancing effects, ensuring a thoroughly refreshed and revitalised feel