Hair-repair specialist Olaplex uses real science to achieve real results—and improve the look and feel of damaged and compromised hair. The brand's patented Bond Maintenance products, available at Nordstrom, work on a molecular level to seek out broken bonds in the hair caused by chemical, thermal and mechanical damage. The result is reduced breakage and visibly strengthened hair. Olaplex Hair Perfector No. 3 is a concentrated treatment that works by saturating the hair for 10 minutes. Next, Olaplex No. 4 Bond Maintenance Shampoo and No. 5 Bond Maintenance Conditioner are used to repair, strengthen and hydrate all hair types. The result is hair that's more lustrous, more beautiful and more manageable.