Ans: It contains high-quality cyanocobalamin along with vegetable glycerin, water, fructose, natural flavorings, and potassium sorbate
The honest answer, based on the available research, is that the effect is real and directionally consistent with the physiology, but modest under ordinary circumstances not the dramatic swing implied by many unsourced blog claims
Injection Technique General subcutaneous technique, following established clinical best-practice guidance [12] [13]
(9) Labunets IF, Butenko GM, Khavinson VKh, Magdich LV, et al (2003) (Regulating effect of pineal gland peptides on development of T-lymphocytes in CBA aging mice: role of microenvironment of immune system organs and neuroendocrine factors)