Description  CoalTA scalp shampoo is a shampoo containing active ingredient coal tar and salicylic acid. This is a concentrated antiseptic tar medication which can reduce scales, inflammation and itchiness. CoalTA scalp shampoo is used to treat scalp conditions such as psoriasis (thickened patches of inflamed, red skin, often covered by silvery scales), Seborrhoeic dermatitis (red, scaly, itchy scalp), eczema (itchy skin rash), itchiness and scaling due to these conditions and dandruff.