psykoninja

Quick question: I'm looking to get dopamine and serotonin tattoos. I just want to make sure these images are accurate. Dopamine: is there a difference between OH and HO? (i would prefer to have OH, as to avoid a Christmas tone.... "HO, HO, HO") Serotonin: does the NH have to be: N H (vertical) or can it stay "NH" (horizontal) Thanks for all your help