There is no human trial to time this against
While most people can benefit from B12 injections, theyre particularly valuable for individuals with absorption issues, vegetarians/vegans, adults over 50, those with certain medical conditions, and people experiencing chronic fatigue or stress
Subcutaneous injection bypasses all of these barriers except plasma half-life, which for unmodified small peptides is generally very short (minutes to low hours, based on class-level pharmacokinetic data for similar unmodified peptides)
[PMID: 11292575] PubMed record related to this compound for laboratory literature review
(5) Ng FM, Sun J, Sharma L, Libinaka R, Jiang WJ, Gianello R
Injectable cyanocobalamin: 10,000 mcg ah, interesting one