Design Essentials HCO Leave-In Conditioner is designed to replenish elements needed for soft, manageable hai and can be used on dry or wet hair daily. It is also a thermal protector for your hair during flat ironing.. This leave-in conditioning spray also provides intense thermal protection for blow-drying and heat styling, great for all hair types. Replenishes the hair with Hydrogen, Carbon and Oxygen (HCO) Eliminates static, adds body and provides an excellent shine Bamboo strengthens and protects the hair Protects hair from thermal styling Silk smooths and softens the hair Excellent on all hair types and textures How-To-Use In 4 Easy Steps: Step 1: Shampoo and condition the hair and towel blot. Step 2: Spray Bamboo & Silk HCO Leave-In Conditioner onto wet hair. Step 3: Comb through (with a wide tooth comb) to the ends. Step 4: Proceed to style, set or blow-dry.