Olaplex is one of the most beloved beauty products across the globe. The bond-building hair brand harnesses the power of its patented molecule, bis-aminopropyl diglycol dimaleate, which works to repair broken disulphide bonds in hair, and thus helps along dry, damaged, and coloured hair that needs extra help. While the No.3 Hair Perfector is the brand’s bestseller, there are now seven at-home products that fans can use, from a shampoo and conditioner to a hydrating oil.