Expertly formulated for hair that feels thin or flat, the Redken Acidic Grow Full System Densifying Conditioner is a pH-balanced treatment designed to encourage a fuller-looking finish. Enriched with azelaic acid and a 7% Densifying Care Complex, the formula helps hair appear thicker while providing instant nourishment and hydration. The lightweight cream smooths and detangles, while working with the scalp to maintain hydration. Use after shampooing, leave on for three minutes, then rinse and continue with the full Acidic Grow system.