Which herbal hair treatment gives you the longest lasting effect? ...

[Priska]

I don't know why i can't fix the title but i really meant all natural treatments including oils etc.

That's it .. yeah I can make my hair look great. But it unfortunately usually doesn't last so long -at least if I keep my hair open. Is there some good treatment to help me with this?.. could it possibly be coconut oil overnight treatment, that I'm going to try coming night?
Well I guess I'll see the result pretty soon...