A pre-shampoo hair treatment that reduces breakage and split ends for visibly stronger hair. Formulated with scientifically proven OLAPLEX Bond Building Technology™ to repair broken disulfide bonds caused by heat, chemical, and mechanical damage. The #1 Prestige Haircare Product. * A pre-shampoo hair treatment to repair damaged hair. Patented OLAPLEX Bond Building Technology™ is proven to rebuild weak and broken disulfide bonds for visibly healthier, stronger hair and reduce breakage and split ends. Key Benefits: Reduces breakage and split ends Visibly strengthens hair Restores healthy appearance and texture Key Ingredients: Bis-Aminopropyl Diglycol Dimaleate - Patented and proven technology to repair broken bonds for stronger hair. *Source: The NPD Group/U. S. Prestige Beauty Total Measured Market, Hair Care Sales, Annual 2021. Dermstore has partnered with Flex to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA). This means you can now use your HSA or FSA debit card to buy Olaplex products with pre-tax dollars, resulting in net savings of 30-40%, depending on your tax bracket. Eligible for HSA/FSA with a letter of medical necessity at checkout. From dermatologist-recommended treatments to solutions for chronic skin conditions like acne, eczema, and rosacea, these products are both effective and eligible. | Olaplex No. 3 Hair Perfector, 3. 3 fl. oz | Dermstore