I have been using this for two weeks now, it works well but I also mix up a pump of the kerastase elixir ultime with it and that smooths my hair down. I recently had my hair foiled with bleach blonde and noticed a lot of breakages afterwards, I'm hoping the ciment thermique will help maintain my hair this time. I don't like heat activated sprays and this cream works well, after washing my hair I apply to damp hair and dry it off then use my GHD iron to straighten. It is lightweight and doesn't make my hair greasy at all. All kerastase products deliver what they promise.