bpc-157 human studies safety evidence review This doesn't mean is side-effect-free. But it does add to the signal. Credit to @dr.kseniamiami for mentioning this study on our recent podcast recording last week which will be out The Hidden Risks of BPC‑157:
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Proper dosing, administration techniques, and monitoring can enhance the effectiveness while minimizing risks

Approximately 10% of the standard injectable dose of 1 mg is absorbed, which allows for rapid replacement in patients with severe deficiency or severe neurologic sy mptoms

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And FDA regulators agreed, saying later that the substances present significant safety risks, because most have not been extensively tested in humans