L’Oréal Professionnel Serie Expert Pro Longer, 1500 ml, Shampoos for Women, The L’Oréal Professionnel Serie Expert Pro Longer shampoo cleans the scalp effectively, washes hair thoroughly, and restores its natural beauty. Characteristics: takes care of the lengths of weakened hair smooths individual hair fibres strengthens hair tips leaves hair soft strengthens the hair fibre How to use: Apply an appropriate amount of shampoo to wet hair. Work up a lather and rinse thoroughly. Repeat if necessary. For best results, follow up with other products from the same range.