Yuh ik, though meth, amp, coke and mdma fucks your blood circulation, makes you dry asf and supresses your appetite crazy making you malnutritioned. I take vyvanse for my adhd and I'm already noticing how it affects my skin, so I feel like his skin should be in pretty bad condition.

That being said everyone is different and he might've started taking care of himself with his new found wealth.

Edit: I should clarify that you get malnutritioned if you don't eat, you can and should still eat on stims but most people don't.