And yet, most people are unclear on what each one actually does, how they differ, and which one (if either) is appropriate for their goals
Vendor technical sheets and primary studies report selectivity over related methyltransferases and enzymes of the NAD salvage pathway [1,6,7]
It is dispensed in amber multidose vials containing 1,000 mcg/mL and compounded for use under either section 503A or 503B, allowing clinicians to individualize therapy for deficiency states ranging from pernicious anemia to postsurgical malabsorption
If youre feeling well and your provider confirms theres no underlying health concerns, high B12 levels from supplementation are usually harmless
Many dietary supplements contain vitamin B12
If injection volume is a limiting factor, rotate injection sites and administer compounds sequentially at different sites rather than combining them in one syringe