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Quick Answer Neither peptide is objectively "better." Available studies indicate BPC-157 is a systemic "jack-of-all-trades" healer that accelerates repair via angiogenesis (blood vessel creation) and the nitric oxide pathway, with a profound affinity for the gastrointestinal tract and tendons

This status could theoretically change with future regulatory attention

More research is needed to determine whether vitamin B12 directly affects body weight or BMI

Grip strength and five-repetition maximum in compound lifts offer additional functional metrics that capture the muscular benefits of improved mitochondrial efficiency and glucose uptake in skeletal muscle

Dangers One concern is the availability of BPC-157 as a research chemical, which raises quality and purity issues