I don't know but this is kind of weird. I can't attach a screenshot because it happened without expectation.
My charm was lvl19. I use the Xenon Cap on my BaM, received 500 charm and rose up to lvl 20
I received the Potion, then use it, it said I've received ~10k charm but when I checked the Profession window my charm was still the same before I used it.
This is annoying. Anyone encountered the same problem?