For removing build up (mineral, chlorine or product) or prior to in-salon service (including Vivid Muk Direct Dye or Semi/Demi Colour). Apply to wet hair using flat hands, gently lather (do not agitate scalp) rinse and repeat thoroughly. If using prior to an in-salon service (colour, smoothing etc) DO NOT use conditioner, otherwise follow with appropriate Muk Conditioner for hair tyle. Pat towel dry and gently detangle.