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As a stable gastrin, BPC 157 has deep cell-protective activity, can exert biological effects without a carrier, and can stably exist in gastric juice for more than 24 hours, showing good oral bioavailability

In its complete response letter (CRL), the FDA cited several CMC issues, open observations from pre-approval manufacturing inspections and a lack of substantial evidence, according to Outlook

For IMR-5/75, the culture media was supplemented with 5 g/mL Blasticidin (Bio-Sciences) and 50 g/mL Zeocin (Thermo Scientific) for plasmid selection

Final Thoughts BPC-157 and TB-500 remain two of the most widely discussed compounds within modern peptide research

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