Ciment thermique protects weakened damaged hair from the aggressions of blow dry and makes hair easier to style instantly hair surface is smoothed while hair fiber is strengthened from within hair is left shiny with a perfect glazed like finish to use apply a chestnut sized quantity of the product on shampooed towel dried hair and massage onto the lengths and ends proceed to blow dry using a hair dryer or heated styling appliance leave in please note we are unable to ship kerastase pro