L'Oréal Professionnel Serie Expert Inforcer Masque strenghtens and reinforces fragile hair. This treatment targets breakage and split ends, leaving hair soft and healthy. With use, you will see your hair become more resistant and stronger, thanks to this formula enriched with Biotin and B6 known for their strengthening properties. Features Strenghtening masque Recommended for fragile, breaking hair, especially long hair Enriched with vitamin B6 and Biotin, for instant reduction of breakage Hair is more resistant and stronger with continued use Provides intense moisture and shine Use Apply a small amount on lenghts and tips Let sit for at least 3 minutes Rinse thoroughly For best results, use in conjunction with: Serie Expert Inforcer Shampoo.