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Description
(2) Botulinum toxin A inhibits acetylcholine release from cultured neurons in vitro, Ray P, PubMed, In Vitro Cell Dev Biol Anim

BPC-157 has less evidence for topical absorption due to its larger molecular weight

Advances in Gerontology, 1 , 240-243

AHK-Cu's evidence base is small but not negligible
