You will enjoy keratin permanent blowdry a pioneering hair treatment which smoothes and repairs the hair using nano molecular keratin the result of this process leaves the hair feeling smooth silky and shiny the straightening lasts for two to four months and fades out progressively with every wash the treatment can be applied to most hairtypes eg virgin highlighted coloured bleached permed or relaxed the application process can take between 1 hours to 3 hours depending o