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Description
Purity issues, even small ones, can throw off an entire study, so researchers tend to be picky about sourcing for good reason
Sourcing and safety Which compounding pharmacy fills your BPC-157 prescriptions, and is it 503A or 503B

peptide therapy (Body Protection Compound-157) is a synthetic peptide derived from a naturally occurring protein in human gastric juice

For a complete framework on how to structure this kind of experiment, see the biohacking research protocol guide
