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Systemic human safety trials for injectable GHK-Cu are severely lacking, and the transition from topical cosmetic to systemic biologic introduces massive pharmacological variables

Concerns about counterfeit and underdosed BPC-157 products are well-documented in consumer communities - one verified buyer review on iHerb specifically cited counterfeiting concerns as the primary reason for choosing a recognized supplement brand over lower-cost alternatives

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People with certain diets or health conditions are more likely to develop vitamin B12 deficiency

GHK-Cu promotes angiogenesis, the formation of new blood vessels