Experience the power of Biolage Scalp Sync Oil Balancing Serum, a lightweight, leave-in serum infused with fermented tea that rebalances your oily scalp by absorbing and reducing excess oil. This serum prevents sebum from traveling down the hair strand with continued use, leaving your hair and scalp feeling purified, healthy, and perfectly balanced. Plus, it's free from parabens, sulphates, and mineral oil.