Description Progressive Hair Straightening Shampoo made with Avocado Oil and Keratin. Enriches hair leaving it soft, easy to manage, clean, shiny, and frizz-free. It helps maintain Keratin, and it pairs with the Leave-In Keratin Treatment. Repairs weak and damaged hair, protects, strengthens, and increases the resistance and elasticity of hair. Sulfate-free, Formaldehyde-free and Parabens-free. Benefits Progressively straightens hair. Repair weak and damaged hair. Keeps hair shiny, soft and manageable. Helps prevent hair loss. How to Use Apply Lisso Inteligente Shampoo to wet hair, massage through, and leave on for 2 to 5 minutes. Rinse with plenty of water. Dry your hair with a microfiber towel or cotton T-shirt, then apply Lisso Inteligente Leave-In Keratin Treatment. Apply a small amount of Lisso Inteligente - Leave-In Keratin Treatment focusing on the mid-length and ends. Gently massage the product into your hair in a downwards motion for 30 seconds. DO NOT RINSE! It will take you only 10 minutes to brush or style your hair.