Biotin-collagen hair mask with hydrolyzed collagen and argan oil. A rich blend of natural ingredients helps restore essential nutrients to each strand, leaving hair looking stronger, fuller and thicker. For best results, use after Shampoo Peptide+ Biotin. Application: After washing your hair with one of the Peptide+ shampoos, apply the mask generously in an even layer all over the hair. Wait 2-3 minutes and rinse thoroughly with lukewarm water. Active ingredients: castor oil, biotin, collagen, argan oil, macadamia oil, hydrolyzed keratin. Product quantity: 500 ml