When the shortages resolved in late 2024 and early 2025, the legal runway for compounded GLP-1s narrowed, but bulk API was still flowing in from foreign manufacturers including many that had never been inspected by FDA investigators
It is also of interest in aging research for its ability to reduce all-cause mortality in mouse models and prolong lifespan
In preclinical research, GHK-Cu is primarily investigated for its pleiotropic biological activities that span tissue remodeling, antioxidant protection, and cellular communication
Reduced ATP production in skin cells
Learning to spot the hidden fillers on supplement labels, and choosing clean capsule materials like pullulan capsules, which are fermented and add a small prebiotic benefit of their own, means the bacteria you're introducing aren't fighting the very additives meant to deliver them