Redken Acidic Grow Full System Density & Strength Instant Densifying Hair Spray 200ml is a professional lightweight leave-in treatment designed to target the signs of thin or flat hair. Ideal for salon use, this advanced formula helps create visibly fuller, thicker-looking hair while supporting scalp balance and hydration without leaving residue or heaviness. Powered by AZELAIC ACID + 5% Densifying Complex, this lightweight leave-in formula delivers: Fuller-looking and thicker-looking hair A rebalanced, hydrated scalp Instant root-lifting How To Use: Apply to clean, damp hair Spray evenly, focusing on the roots and lengths Do not rinse Style as desired Perfect for professional hairdressers and stylists, this non-greasy spray enhances volume and manageability while helping reduce hair fall due to breakage. Used as part of the Acidic Grow Full System, it supports stronger, denser-looking hair with a lightweight, natural finish.