Always verify with your pharmacy what components your specific formulation contains
According to the Mayo Clinic, most people consume adequate amounts of B vitamins through their diet, though the elderly, particularly those with pernicious anemia, athletes, strict vegetarians, and people who consume a lot of alcohol may be deficient in the B vitamins and may require injections or oral supplementation of B vitamins or vitamin B-12, in particular
Every supporting citation is single-compound
Their technical listings identify the standard 15-amino-acid sequence: Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val Researchers should still verify that the product name, sequence, amount, and batch information shown on the COA match the vial being purchased
So a lot of people are using like 0.5 milligrams, but once you get up to 10 milligrams or so, youre getting some degree of pharmacological antidepressant effect because its a monoamine oxidase inhibitor