bpc-157 anti-aging The Complete Peptide Reference Guide: BPC-157, TB-500, GHK-Cu, Semax & 17 More — Evidence-Based Guide to Healing, Muscle Growth, Fat Loss, Anti-Aging, Brain Health & Longevity eBook : HEARN, DA Kindle Benefits of BPC-157 - Mousai
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Chemical Biology & Drug Design, 81(1), 136-147

Yes, but it should not if it is injected properly and you take the proper post-injection precautions

The bacteria produce endotoxins that increase intestinal permeability (sometimes called "leaky gut")
The amount of bacteriostatic water needed for reconstitution depends on the type of peptide being used and its concentration
