The Vitamin B12 Injection form allows for effective administration, particularly for individuals who cannot absorb vitamin B12 effectively through oral supplementation due to gastrointestinal issues
AOD-9604, sometimes called the fat-burning peptide, showed limited promise in animal studies but has failed to demonstrate consistent results in people, leading the FDA to explicitly state it is not an approved treatment (FDA on unapproved drugs)
Headache: Headaches are a possible side effect of B12 injections, although they are typically mild and transient
CS: Investigation, Methodology, Writing original draft
It is not a controlled substance for the general public in the way a scheduled drug is, but it also holds no legal therapeutic-use status, which is why its sold strictly as a research compound rather than a consumer product
The issue is usually temporary and not severe enough to become problematic