Yuko japanese thermal ironing system will change you curly frizzy unmanageable hair into shiny smooth straight healthy hair that will remain straight an in salon consultation is required before this treatment can be booked you can buy an e voucher for this service but you may have to apply for a refund if i find your hair unsuitable for this treatment average head of hair takes about 4 hours and the results last from 9 to 12 months it will not work on bleached or hair that has had highlights