If you're adding a purple shampoo to your regimen, start by using it once a … When it comes to how to apply purple shampoo on dry hair you want to thoroughly work the product into your dry strands. Those of us with blonde hair need purple shampoo because of how the hair is lightened in the first place. What is Purple Shampoo? According to Redken Artist Adina Doss "When I lift a client's hair (colorist speak for … How To Use Purple Shampoo On Dry Hair. If you’re a blonde, either naturally, or not, you’re no stranger to the yellowing, or dulling of your hair color.. Light colored hair is susceptible to discoloration; caused by … Then leave it on from between 5 to 30 minutes depending the health of your hair. Purple shampoo is a tinted shampoo specifically produced for people with blonde to white or gray hair for toning or covering yellowing hair that can be caused by heat damage, … Purple Shampoo: The Ultimate Guide. "When rinsing the shampoo out of your hair, use cool water, which will help close the cuticle and seal the color." If there’s one hair care product we’re seeing more and more of lately, it’s purple shampoo.On the other hand, something we haven’t heard a ton about is purple shampoo for brown hair.Often touted as a brightening, brass-busting shampoo for blonde hair, purple shampoo … Finally wash out and apply either a conditioner or hair mask as this purple …