Moroccanoil Clarifying Shampoo is a perfect deep cleansing shampoo for removing chlorine residue and hair product build up. It is the best swimmers shampoo due to it's deep cleansing formula. It removes everyday build up - is free of impurities and your hair is returned to it's natural weightless state. To use, simply massage into your wet hair and scalp then rinse well. For stubborn build up we recommend you do two or three shampoo's. For best aftercare use your favourite Moroccanoil Conditioner.