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International Journal of Cosmetic Science 27(3):155-160. [doi.org]

The observational link is clearer than the causal link from supplementation

They post a batch-specific certificate on the product page, name the lab that ran the test, and answer support questions quickly when you ask for documentation

Kennedy has discussed using peptides for his own injuries

A topically applied peptide must survive on the skin surface, penetrate the stratum corneum barrier, and reach the follicular target at a biologically relevant concentration

What Most Pages Get Wrong About Oral BPC-157 Nearly every blog comparing these routes states with confidence that "BPC-157 is uniquely stable in stomach acid and absorbs orally." This collapses two separate claims into one and overstates the certainty of both