Honestly, if you’re injecting ghk, it should still help with hair growth. I don’t know if I’d wanna use DMSO on the scalp because it’s highly vascular and if there’s anything on it at the time it can be carried into the bloodstream
I've been using DMSO 20% with Minoxidil and i usually make sure to wash my scalp with water before applying it (Although sometimes im lazy), it does help quite a bit and i have alot of vertex regrowth. Maybe 100% DMSO is different
I read recently that GHK-CU doesn't go as Systemic and would be more beneficial to hair locally which is why i am considering Scalp Application
So I actually did this but to get rid of a couple Sebaceous cysts
on my scalp Worked great on two. One seems to not completely go away from it but shrunk. They did get more tender for a couple days after injection before shrinking. Don’t think this is what you are asking about though.