The industry is filled with fake and underdosed products, but since they synthesize and lyophilize all their peptides themselves, they ensure high purity in their products
For people who dont absorb B12 well, or those whose want to make sure beyond reasonable doubt that theyre getting an ample dose quickly, B12 shots are available via prescription, says Richard Foxx, M.D., a board-certified physician who treats hormonal disorders and nutritional deficiencies
The instant a needle penetrates the rubber stopper, three things happen: air enters the vial headspace, the sterile barrier is permanently breached, and the multi-dose use clock starts
Department of Health and Human Services, Health Resources and Services Administration, National Center for Health Workforce Analysis