Repairs Chemically Damaged Hair Color and chemical treatments damage hair over time. Without attention, this damage can translate into dry, damaged, frizzy tresses. NIA FIX comes in to resolve that damage and protect your hair from future damage. Reduces Breakage Don’t let your hair fall victim to the stresses and strains of daily life. NIA FIX strengthens hair to reduce breakage and promote strength, both now and in the future.