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Though gut-specific data is limited, HGH 191AA may tangentially support the regenerative actions of BPC 157 through its general growth-promoting properties

The mechanism appears to involve increased serotonin synthesis in substantia nigra, a regional pattern unlike any existing antidepressant drug

[DOI] [PubMed] [Google Scholar] 25.Griese M, Ramakers J, Krasselt A, Starosta V, van Koningsbruggen S, Fisher R, et al

Its small size and copper-binding affinity underpin its bioactivity, distinguishing it from larger proteins or synthetic peptides

Researchers studying skin rejuvenation and anti-aging frequently use this peptide as a reference compound or experimental tool

Bottom Line: Sermorelin vs BPC-157 Sermorelin and BPC-157 serve different purposes