World J Biol Psychiatry 13, 3947 (2012)
This sensation aligns with what we would expect from nitric oxide-mediated vasodilation
European Journal of Endocrinology, 139(5), 552561
The Science DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring neuropeptide first isolated from the cerebral venous blood of sleeping rabbits, demonstrating remarkable ability to promote deep, restorative sleep and optimize sleep architecture through sophisticated neurological mechanisms
Exp Clin Gastroenterol 1:1516, 1991 Sikiric P, Petek M, Rucman R, Grabarevic Z, Seiwerth S, Rotkvic I, Jagic V, Danilovic Z, Dodig M, Duvnjak M, Artukovic B, Dzaja P, Senecic I, Suchanek E, Giljanovic S, Mise S, Djarmanovic Z: Beneficial effect of a new gastric juice peptide, body protection compound, in acute pancreatitis models
Both these vitamins are common in supplements in both oral and injectable forms