L’Oréal Professionnel Serie Expert Blow-dry Fluidifier, 150 ml, Hair Creams and Gels for Women, The L’Oréal Professionnel Serie Expert Blow-dry Fluidifier heat protection product gives your hair effective protection against heat damage. Characteristics: fights frizz smooths the hair fibre effective protection during heat styling nourishes and improves the structure of the hair How to use: Apply to wet hair, especially the lengths and ends. Do not rinse. Style your hair as usual.