Pro Longer Mascarilla 500 ml by L'Oréal Professionnel is a treatment designed for long hair with fine, split, and open ends: its formula combines the patented technology FILLER‑A100, which penetrates into the core of the fiber to fill and thicken the ends from the inside, with amino acids that strengthen the fiber from the outside. The result: stronger hair with shine and a notable reduction of split ends (up to 66% according to instrumental testing), ideal if you notice your lengths are thinner and more fragile.
Apply it to washed and towel-dried hair, distribute evenly, and leave on for 3 to 5 minutes; rinse thoroughly. Practical tip: to enhance the effect, follow the Pro Longer ritual (concentrate + shampoo + mask) and, if you want extra density, once a week substitute the mask with the Lengthening Concentrate for thicker, fuller ends.
