Background: Multiple sclerosis (MS) is a disease of young and middle aged individuals with a demyelinative axonal damage nature in central nervous system that causes various signs and symptoms. As color vision needs normal function of optic nerve and macula. it is proposed that MS can alter it via influencing optic nerve. In this survey. https://www.roneverhart.com/Redken-Color-Extend-Blondage-Conditioner/