bpc 157 human trial clinical safety NBC News Multifunctionality and Possible Medical Application

intracellular half-life is prolonged because of lysosomal release and cytosolic resequestration, creating a depot effect that supports monthly maintenance dosing for chronic deficiencies

10.1016/s0140-6736(16)32453-32459 Lancet 15 BuurmanR.GurlevikE.SchafferV.EilersM.SandbotheM.KreipeH.et al (2012)

For disc repair specifically, GHK-Cu enhances collagen synthesis by chondrocytes, the very cells responsible for maintaining disc structure

But, ultimately, benefits need to outweigh risks

How Peptides and Secretagogues Work for Recovery Injectable peptides and growth hormone secretagogues (GHSs) accelerate recovery by activating repair pathways at the cellular and molecular level

For best results, use consistently for at least three to six months, ideally alongside attention to nutrition (particularly protein and iron levels) and any underlying causes