Here is how they compare against alternatives for specific injuries
This breadth is both the compound's strongest argument and a source of appropriate scientific skepticism: a compound that seems to fix everything tends to invite scrutiny about study quality and publication bias
Aminoglycosides, tetracyclines, and certain other antibiotics may alter gut microbiota composition, potentially affecting the small amount of vitamin B12 that is produced by colonic bacteria, though this is generally not clinically significant for patients receiving injectable B12 supplementation
The category includes growth hormone secretagogues like CJC-1295 and ipamorelin, immune-modulating peptides like thymosin alpha-1, and metabolic regulators that overlap with the GLP-1 class of compounds used in programs like GLP-1 Longevity Care
Nature Made offers standalone supplements of Vitamin B12, which supports nervous system function among other essential functions