Target thin or flat hair with the Redken Acidic Grow Full System Serum, a pH-balanced serum designed to leave thicker-looking hair and scientifically proven to reduce hair fall due to breakage from brushing.

Powered by AZELAIC ACID + 5% Hydrating Complex, this lightweight scalp and hair serum delivers:
• Fuller-looking and thicker-looking hair
• A rebalanced, hydrated scalp
• Strengthening benefits that lead to up to 2x less breakage*

*high repetition, instrumental brushing test vs classical shampoo on bleached hair
Part of the NEW Acidic Grow Full System of shampoo, conditioner, serum, and spray, which works to rebalance the scalp with hydration and instantly creates denser-looking hair. The system helps create the look and feel of fuller, denser hair by coating the hair fiber and reducing breakage while hair grows as usual.

To use: After rinsing conditioner, on damp hair, spray onto the roots. Use fingers to massage into scalp. Do not rinse. Style as usual.