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That is what the sleep architecture and growth hormone secretion data show, and it is what we see in our first-time peptide patients who walk in at week 8 frustrated that nothing is changing

However, it is important to note that many peptides remain classified as investigational

The practical rationale for combination protocols is straightforward: BPC-157 targets local tissue repair (particularly GI, musculoskeletal, and neural) through signaling pathways that promote growth factor expression and cell survival at injury sites, while TB-500 operates more systemically particularly through vascular remodeling, cardiac progenitor activation, and direct anti-inflammatory cytokine modulation

PMID 3528148