Aquage Strengthening Conditioner Weak & Damaged Hair is a daily use protein hair treatment. Created for those who have damaged, very dry or chemically treated hair, it helps to repair the hair shaft from deep inside and leave it stronger and more resilient to damage. Leaves hair soft and full of shine. Works best when used along with Aquage Strengthening Shampoo for Weak and damaged hair. How to use: Apply conditioner on damp hair. Comb through hair using a wide toothed comb. Leave on for 5 minutes and rinse.