K18 Molecular Repair Hair Oil 30mlK18 Molecular Repair Hair Oil is a biotech engineered weightless oil that works on all hair types to strengthen, repair damage, reduce frizz at two levels of the hair fiber, and improve shine. The K18PEPTIDE works to address deeper level damage that causes frizz repairing and strengthening damage at the innermost layer of hair to reverse damage that leads to frizz.