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(2020) specifically addressed NSAID-induced gut damage a clinically relevant injury model and documented that BPC-157 administration stabilized the claudin-4 and occludin tight junction proteins that are degraded by NSAID exposure, providing a mechanistic explanation for the peptides permeability-protective effects

For GLP-1 protocols, 31G is standard and preferred it offers minimal tissue trauma and virtually painless insertion when technique is correct

These tend to be places where you can easily access the subcutaneous (fatty areas) under the skin and the needle will not come too close to muscle or bone

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Fecal microbiota transplantation in gastrointestinal and extraintestinal disorders