The Pro Longer mask is designed to enhance the appearance of long hair, giving the appearance of thicker, healthier, and more robust lengths. The Filler A-100 technology, which is exclusive to L'Oréal Professionnel, plumps and thickens hair from the inside out by penetrating the fiber core. The combination works best on areas with thin ends or the greatest need for assistance. *instrumental test shampoo + lotion + mask How To: After using Pro Longer shampoo, massage dry hair with a towel. In 3 to 5 minutes, depart. Give it a good rinse. AQUA/WATER, CETEARYL ALCOHOL, AMODIMETHICONE, HYDROXYPROPYL STARCH PHOSPHATE, ISOPROPYL MYRISTATE, BEHENTRIMONIUM CHLORIDE, PHENOXYETHANOL, TRIDECETH-5, ISOPROPYL ALCOHOL, TRIDECETH-6, GLYCERIN, CAPRYLYL GLYCOL, ARGININE, PANTHENOL, TRIDECETH-10, LACTIC ACID