How long can it take for hair to recover from heat damage?

2 Answers

Heat damage? It just depends. It might not ever recover. Are you using deep treatments? 
I agree with TooCurled. Sometimes it never recovers and you have to chop it off. Or, do like I did. Nurse it back to health for 6 + months and cut off the split ends as it grows so not to lose too much lenth.