Elasticizer Booster is an intensive, deeply nourishing in-shower conditioner designed to enhance and prolong the effects of your original Elasticizer Treatment. Containing a medley of Elasticizer's powerhouse ingredients, including amino acids, proteins, and panthenol, the formula helps to help restore elasticity, strengthen your strands, and improve your hair health. The ultra-versatile formula can be used as a conditioner, flash mask, or layered over your conditioner for extra hydration. Say goodbye to dry, brittle hair!Benefits of Philip Kingsley Elasticizer Booster: Deeply condition Tames frizz and adds elasticity Strengthens, protects, and improves hair's condition How to use:Apply your normal conditioner over the mid-lengths and ends of your cleansed hair. Smooth the Booster over the top, paying particular attention to the driest, most damaged areas of your hair. Rinse thoroughly, dry and style as usual. Can also be used all over in place of your normal conditioner and left on