The unique enzymes that convert serotonin, melatonin, or tryptamine into psychedelic compounds also are present in extraordinarily high concentrations in the pineal. These enzymes, the methyltransferases, attach a methyl group—that is, one carbon and three hydrogens—onto other molecules, thus methylating them. Simply methylate tryptamine twice, and we have di-methyl-tryptamine, or DMT.
