I used to have heat damaged too and I tried everything, then I started using Pro Naturals Moroccan Oil Hair Treatment with Heat Protector which is pretty good and it can help you to repair your hair, it helps strengthen the hair that's prone to breakage, splitting or snapping off, gently smooths the hair, reduces Frizz and helps prevent heat damage, plus leaves hair healthy, shiny and resilient. Hope this can help and good luck with that.