Philip Kingsley's Bond Building Restructuring Treatment Bond Builder works beneath the surface of the hair helping to reinforce existing bonds and rebuild broken ones. By strengthening the hair from the inside out, this intensive treatment leaves heavily processed strands stronger and smoother, with a visible reduction in damage and breakage. Key Ingredients: Advanced Bond Rebuilding Technology: protects, strengthens and repairs damaged hair. It works by reconnecting broken bonds and protecting existing bonds Panthenol: a lightweight conditioning agent that provides long-lasting moisture to the hair, improving luster without blocking the effectiveness of our Advanced Bond Rebuilding Technology Key Benefits: Increases strength Reduces breakage Improves wet and dry combing Visibly healthier hair More defined curls Sharper ends . 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 Philip Kingsley 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. | Philip Kingsley Bond Builder Restructuring Treatment, 150 ml | Dermstore