A highly professional dermatological shampoo which offers an effective solution for the most bothersome coexisting scalp problems, i.e. dandruff and excessive hair loss. Piroctone olamine and citric acid contained in the formula effectively cleanse the scalp, eliminating the burdensome and unsightly symptoms as well as causes of dandruff that interferes with the physiological life cycle of hair and contributes to excessive hair loss and thinning.