ghk cu injection site irritation red Unfortunately, GHK-Cu can sting, irritate and leave lumps or a ghk cu injection site irritation

[ref] As wounds and damaged tissue heal, they rely on the formation of new blood vessels, which is another way that BPC-157 promotes healing.[ref] BPC-157 increases the formation of blood vessels by increasing the expression of vascular endothelial growth factor receptor 2 (VEGFR2)

Both compounds share the same regulatory timeline: moved to Category 2 in 2023, removed from Category 2 in April 2026, and scheduled for PCAC review on July 23, 2026

[9] How quickly should I notice an effect

Zimmermann T, Thomas L, Baader-Pagler T, et al

By age 60, that concentration has fallen to approximately 80 ng/mL, a 60% decline that correlates directly with reduced healing capacity, collagen loss, and visible aging

The peptide may still be partly active, but degradation cannot be ruled out without analytical testing