L'Oreal Professionnel Pro Longer length renewing mask , to renovate the hair fiber of long hair and give it more strength and shine. Pro Longer is the first professional range that restores lengths and fills ends. With Pro Longer, long hair is stronger and shinier from root to tip. The Pro Longer Série Expert length renovator mask is ideal for maintaining long hair without having to cut it! Its professional formula, enriched with Filler-A100 and amino acid, allows an instant renewal of the fiber. This mask instantly renovates lengths and ends for stronger, shinier hair along the entire length. Between -33% split ends (with the shampoo + mask routine) and -66% (with the concentrated + shampoo + mask routine) are observed. Technologies: Filler A100: Composed of Filoxane and Polyquaternium PQ6. Filoxane has a thickening actin. Indeed, it penetrates into the heart of the hair fiber to strengthen the internal structure of the hair. In addition, Polyquaternium PQ6 smooths the surface of the fiber for a 66% reduction in small forks. Amino acid: A well-dosed mixture of amino acids helps restore part of all proteins.