Vitamin C shower filters use one of two methods to neutralize chlorine in water. One of the methods will involve the usage of ascorbic acid. The opposite, meanwhile, depends on sodium ascorbate to neutralize chlorine. KDF copper-zinc media filtration further more reduces chlorine and enhances your shower water's pH equilibrium. https://andresitckt.thenerdsblog.com/22613958/about-what-ph-is-water