How my partner can tell what kind of bath I recently had without asking. 
That seems to be how it goes for me as well. It doesn’t bother me having it on my skin, but I start feeling like I need to wash my hair sooner if I get more than just the ends wet.
If I don’t have a therapeutic kind of bath, I usually shower straight after having the bath. But otherwise, I’ll give it a few hours in between as well. My skin tends to feel nicer afterwards. 