A complete kit includes: A sealed vial or glass ampoule of B12 (cyanocobalamin or methylcobalamin) A 3 mL syringe A drawing needle (typically 18-21 gauge) An injecting needle: 22-25 gauge, 1 to 1.5 inch for intramuscular (IM)
This allows vital nutrients, minerals, and chemicals to get into cells for biological processes, and pull waste out of cells to the kidneys for elimination
For everything else, injection is the clinically validated route
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An evolutionarily favorable fact is that one-half of your B12 is stored in your liver, and it takes many years for these stores to be depleted
This means each unit on the syringe holds less peptide, which can be a significant advantage when your research protocol calls for very small, nuanced doses