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Journal of Pharmacology and Experimental Therapeutics via PubMed (PMID 40312093), 2025 The procognitive and synaptogenic effects of angiotensin IV-derived peptides are dependent on activation of the hepatocyte growth factor/c-met system (animal and lab study not human evidence

Popular but Problematic A few peptides dare heavily marketed despite serious concerns: (Body Protection Type Compounds) Zero human clinical trials all evidence is from rodent studies Unknown safety profile in humans No FDA approval or legal pathway to human use Banned by WADA (World Anti-Doping Agency) as a performance enhancer Explicitly listed by FDA as not eligible for compounding (Other Thymosin related Compounds) Not the same as thymosin alpha-1 (which does have approval in some countries) No human clinical trials for healing or recovery Banned by WADA Cannot be legally compounded or prescribed in the US Yes, online forums are filled with anecdotal reports of miraculous healing from these peptides

Always check the medication's prescribing information or consult with your pharmacy

So, you would need to inject 0.5 milliliters of the solution to deliver 500 mcg of vitamin B-12