Developed for dermatologists to treat their patients with thin, weak, damaged and lifeless hair. / The unique foaming treatment is fortified with vitamins, proteins, panthenol and other proven natural extracts to nourish dormant hair roots. / A blend of low molecular weight proteins are absorbed into the hair shaft to strengthen, repair damage and increase the hair's diameter by a covalent bonding process. / Excellent conditioning treatment for color treated and permed hair / Contains ultraviolet sunscreen protection / pH balanced / Gently disperses through the hair / Great for detangling and to remoisturize / 8.45 fl. oz. / How to Use: It is recommended to use Volume & Strength Treatment 2-3 times a week depending on the hair's condition and damage. Apply to damp hair after shampooing and before conditioning the hair with Scalp Response, Distribute a small amount of Volume & Strength Treatment through damp hair and work into a rich protein foam, leave on for 2-3 minutes and thoroughly rinse with warm water. May be used before and after chemical treatments.