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It is one of the most extensively researched regenerative peptides, with over 50 years of published literature from independent research groups worldwide

Unfortunately, your body cant produce its own B12 to take advantage of all these benefits, so you have to consume it through food or supplements

& Cosa, G

The effects of a B12 injection typically last 1-2 weeks initially, though this varies by individual

Testing has found significant contamination rates in some peptide products, including incorrect amino acid sequences, endotoxin contamination, and mislabeling

The long-term efficacy and side effects require further evaluation