Rexsol dandruff control shampoo is effective against dandruff, yet gentle on your hair. it contains zinc pyrithione, a clinically proven anti-dandruff compound. it controls dandruff flaking while leaving hair clean, shining and easy to manage. it reiieves the itching and flaking associated with dandruff and seborrheic dermatitis of the scalp. it is the dandruff shampoo you can make your regular shampoo. for all hair types.method of useapply to wet hair and lather, rinse thoroughly.