MG217 Medicated Conditioning Shampoo is formulated with coal tar to help slow the rapid growth of skin cells on the scalp. Coal tar is the only non-prescription active ingredient that works by slowing down excessive cell reproduction. This reduces the inflammation, itching and scaling of psoriasis, dandruff and seborrheic dermatitis. Our conditioning formula leaves hair clean, soft and manageable and helps prevent recurrence of psoriasis or dandruff symptoms. Controls symptoms of psoriasis/seborrheic dermatitis and dandruff.