Using the FDA's body-surface-area conversion, a 10 mcg/kg rat dose maps to roughly 1.6 mcg/kg in a human, but most practitioners use higher doses based on clinical experience
The vial rubber stopper is damaged Repeated punctures through the same spot can core the rubber stopper, creating small rubber particles that fall into the solution
The According to the ODS, the recommended dietary allowance (RDA) of vitamin B12 by age is as follows: 0 to 6 months: 0.4 micrograms (mcg) 7 to 12 months: 0.5 mcg 1 to 3 years: 0.9 mcg 4 to 8 years: 1.2 mcg 9 to 13 years: 1.8 mcg 14 years and older: 2.4 mcg During pregnancy, the RDA of vitamin B12 is 2.6 mcg
Inert Gas Sealing: After removing the needed amount, reseal containers under dry, inert gas (e.g., nitrogen or argon) to prevent oxidation of remaining peptides
Annals of Allergy, Asthma & Immunology, 131(2), 250-255