Powered by a patented technology FILLER-A100 and Amino Acid, the Serie Expert Pro Longer Lengths Renewing Mask 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 Mask with the Ends Filler Concentrate to durably fill and thicken ends.

*Instrumental test Pro Longer Lengths Renewing Shampoo + Lengths Renewing Mask

**Instrumental test: In-salon protocol Pro Longer Ends Filler Concentrate + Lengths Renewing Shampoo + Lengths Renewing Mask