Product Description Powered by a patented technology FILLER-A100 and Amino Acid, the Serie Expert Pro Longer Lengths Renewing Masque is the perfect treatment for long hair suffering from thinned ends. The fiber is instantly renewed, and the hair is stronger and shinier. Once a week, replace your Lengths Renewing Masque with the Ends Filler Concentrate to durably fill and thicken ends. HAIR TYPE Long hair with thinned ends RESULTS 32% split ends reduction* 66% split ends reduction**