With a dual-action and laboratory-tested formula, the Jason Dandruff Relief 2-in-1 Treatment Shampoo & Conditioner is the ultimate scalp treatment. Its dermatologically-approved formula controls dandruff with visible results, and instantly soothes, minimising flakiness. Suitable for all skin types, it contains pyrithione zinc and wheat protein, which help to improve long-term scalp health. As a medicated formula, it eliminates flakes and itchiness without being harsh on the skin. Jason are a Californian brand that specialise in natural blends, inspired by their West Coast heritage, that truly utilise the power of botanicals. All Jason products are paraben, SLS, and phthalate-free.