Hello Klean shampoo may now be widely available alongside the L’Oreals and Pantenes of the haircare world, but the brand made its name tackling hard water at the source.
Founded in 2019, Hello Klean began with a shower filter before launching its first filtering shower head in 2023, with both products designed to reduce the chlorine and impurities that can leave hair dry, dull and prone to breakage. It’s not hard to understand the appeal of these sort of products, particularly if – like me – you live in a hard-water area. With such widespread appeal, the concept proved successful enough for Hello Klean products to expand beyond filtration into wash-off hair and body formulas in 2025.