GLYTONE BY DUCRAY Shampoo is a trio of calming dermo-cosmetic shampoos that target different degrees of scaling conditions while protecting the scalp and hair. All shampoos are formulated without coal tar to ensure safety and better tolerance, according to the company. The shampoo line includes Kelual DS Shampoo, a soothing formula for severe scaly scalp that contains a proprietary blend of ciclopirox olamine and zinc pyrithione to remove scale buildup and calm itching; Kertyol P.S.O Shampoo, a calming formula for scaly scalp, containing micronized sulphur to break up bonds between dead skin cells; and Elution Shampoo, a gentle formula for fragile scalps. It contains zinc gluconate and vitamin B5 hydrates to help keep fungi and bacteria in check. All three formulas are meant to be massaged into the scalp to help stimulate microcirculation, and are then left on the scalp for a few minutes before rinsing.