In the vast field of molecular biology, a growing collection of research peptides has captured attention for their theorized roles in supporting hair integrity and related regenerative domains. This article explores several peptides under serious investigation—including GHK-Cu, BPC-157, PTD-DBM, APN5, thymosin β-4 derivatives, and additional signaling entities—highlighting their speculative mechanisms and possible implications in research models. Introduction: Research Peptides in...