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BPC-157 is classified by WADA in the S0 Unapproved Substances category, meaning it is prohibited in professional and competitive sport regardless of administration route

The truth is much less exciting

Consider baseline labs, fertility goals, cost, and access to regulated products before proceeding

The presence of benzyl alcohol provides bacteriostatic activity by disrupting microbial cell membranes, thereby reducing contamination risk during multi-use experimental workflows

The authors thank the Ingredients Department (Shanghai Jiyan Biomedical Development Co., Ltd.) for their support in transdermal permeation experiments

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