That depth of evidence gives us substantially more confidence in its mechanisms and effects than we can have with newer, less-studied compounds
Thats not a foolproof guarantee that the peptide will be pure (and free of contaminants like heavy metals), but its better than taking your chances with companies that dont do third-party testing
They are not intended to diagnose, treat, cure or prevent any disease
Paiva-Santos AC, Silva AL, Guerra C, Peixoto D, Pereira-Silva M, Zeinali M, et al
doi: 10.25259/ABP_12_2024 Abstract Objectives: A casecontrol observational study to investigate the correlation between serum vitamin B12 levels and depressive symptoms severity using the Hamilton Depression Rating Scale (HDRS17) in 60 individuals with clinical depression and 60 healthy controls