The Olaplex No.4 Shampoo and No.5 Conditioner Set is a professional hair care duo designed for bond maintenance and repair. Each bottle contains 250 ml of product and offers a comprehensive treatment system. This set utilizes the patented Bis-Aminopropyl Diglycol Dimaleate technology to address and repair damaged sulfur bonds in the hair structure, which are often compromised by chemical treatments, heat styling, and environmental factors. The shampoo, Olaplex No.4, is formulated with a blend of gentle cleansers such as Sodium Lauroyl Methyl Isethionate and Cocamidopropyl Hydroxysultaine, combined with nourishing extracts like Euterpe Oleracea fruit extract, Punica Granatum extract, and Rosmarinus Officinalis leaf extract. It cleanses without stripping essential moisture and initiates the bond repair process. The conditioner, Olaplex No.5, complements this with a rich formula that includes Cetearyl Alcohol, Caprylic/Capric Triglyceride, and conditioning agents such as Cetrimonium Chloride and Behentrimonium Chloride. Additionally, it incorporates Pseudozyma Epicola ferment filtrates from Argania Spinosa kernel oil and Camellia Sinensis seed oil, along with Persea Gratissima oil and Vitis Vinifera seed oil, to moisturize, condition, and seal the hair cuticle. Together, these products aim to restore the integrity of damaged and compromised hair, improve manageability and shine, and protect the internal hair structure. The formulation includes Panthenol, Biotin, Tocopherol, and Sodium Hyaluronate for added hydration and care. Suitable for various hair types seeking repair and maintenance, this set focuses on strengthening hair from within, leading to healthier-looking and more resilient-feeling hair with consistent use.