I don’t do it IM. Maybe that’s the difference. I’d love some energy and clarity. Nothin.It apparently boosts energy and mental clarity. My doctor told me he has other patients who love it and suggested I might want to try it. They were doing a NAD+ IV though, not the injectable. I was placing an order with QSC and I saw they had it for only $65 so I added it to my list. Will try it once my sodium bicarbonate solution to arrives and share the results.