Olaplex PRO EXCLUSIVE: 4-IN-1 MOISTURE MASK..

A professional-only, deeply penetrative mask to restore moisture to dry, dehydrated, or damaged hair of all hair types, especially as an add-on after drying chemical services. This mask also helps rebuild disulfide bonds, which play a key role in strand integrity to help hair maintain moisture more effectively. The result is smoother, shinier, more hydrated hair that never feels weighed down.