Joanna Professional Thermo, 125 ml, Hair Serums for Women, The Joanna Professional Thermo heat protection product gives your hair effective protection against heat damage. Characteristics: effective protection during heat styling smooths the hair fibre fights frizz leaves hair smooth and soft to the touch restores the natural shine of the hair How to use: Apply along the length to the ends of washed hair and comb through. Do not rinse. Afterwards, style your hair as usual. Only for professional use.