Cognitive Enhancement Research Dihexa Dihexa has been directly tested in cognitive paradigms (aged rat water maze, scopolamine reversal) and demonstrates synaptogenesis through HGF/c-Met signaling, providing a more direct cognitive enhancement rationale than PE-22-28 Neurogenesis and Mood Research PE-22-28 PE-22-28 induces hippocampal neurogenesis within 4 days and demonstrates antidepressant-like effects through TREK-1 blockade, making it more relevant for mood-cognition intersection research Oral Bioavailability Requirement Dihexa Dihexa has demonstrated approximately 38% oral bioavailability with BBB penetration, while PE-22-28 oral availability has not been characterized Lower Theoretical Risk Profile PE-22-28 PE-22-28 targets an ion channel without known oncological associations, whereas Dihexa activates the HGF/c-Met pathway which is a characterized oncogenic signaling axis Evidence Reliability PE-22-28 PE-22-28 has no retracted publications in its evidence base, while a key 2014 Dihexa paper was retracted for data fabrication concerns Continue Your Research Get comparison updates We publish new head-to-head comparisons regularly

Nelson M, Balasundaram G, Webster TJ
A properly reconstituted vial of GHK-Cu in BAC water will remain stable and potent for at least 4 weeks, often longer
Science 375, 296301
The University of Zagreb School of Medicine is the leading institution studying BPC-157, with Predrag Sikiric and his team producing decades of preclinical research demonstrating gastrointestinal healing, cytoprotection, and vascular repair
While BPC-157 is known for its role in angiogenesis and local wound healing, TB-500 is studied for its ability to promote cell migration, reduce inflammation on a systemic level, and support the healing of a wide range of tissues