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doi: 10.3389/fnut.2022.718710 Received 01 June 2021 Accepted 22 February 2022 Published 25 April 2022 Volume 9 - 2022 Edited by Francisco Javier Santos Vicente, Vall dHebron University Hospital, Spain Reviewed by Markus Xie, Immunology Discovery, Genentech, United States

In our experience reviewing laboratory best practices, published stability studies, and analytical testing data, peptides rarely fail simply because their time ran out. Most stability problems can be traced back to avoidable handling mistakes that accelerate hydrolysis, oxidation, denaturation, aggregation, or microbial contamination

4 weeks 28 syringes 1 syringe per daily injection

In general, around 50 to 98 percent of the vitamin B12 consumed is eliminated from the body 48 hours after the shot is given