The L'Oréal Professionnel Serie Expert Absolut Repair Molecular Leave-In Mask is a lightweight, high-performance leave-in treatment engineered to repair damaged, over-processed, and color-treated hair at a structural level. Designed to treat deep structural damage rather than just smoothing the surface, this formula works directly inside the hair fiber to restore strength, elasticity, and natural movement lost to frequent bleaching, heat styling, or chemical processing.
At the heart of its formula is a patented technology featuring a Peptide Bonder and five essential amino acids. Because whole peptides are usually too large to enter the hair shaft, this advanced technology decomposes them so their core components can penetrate deep into the inner fiber, reforming damaged molecular bonds from within. Alongside its internal bond-rebuilding capabilities, the formula acts as a thermal shield, offering heat protection up to 230°C (450°F) to prevent future styling damage.
The mask features a lightweight, serum-cream texture that absorbs rapidly into towel-dried hair without leaving behind any heavy, sticky, or greasy residue. Simply apply one to two pumps through the mid-lengths and ends after washing, detangle, and proceed to air-dry or heat-style without rinsing. From the very first application, it leaves all damaged hair types feeling up to 97% stronger, noticeably smoother, and significantly easier to manage.
