ghk cu sub q dosage GHK-Cu Dosing, Need to Know Information, Safety,… How Much GHK-Cu Should I

Heres what the numbers from that study say

doi:10.1146/annurev.bi.56.070187.003151

Early study initially suggested that disruptions of the insulin or GH/IGF1 axis with low insulin and IGF1 levels may enhance autophagy to prevent the age-related mitochondrial degradation and extend the lifespan (Wang and Miller (2012) demonstrated that fibroblasts in Snell mice (which secrete very low amounts of GH, prolactin, and thyroid-stimulating hormone) are more susceptible to autophagy induced by amino acid withdrawal or by oxidative stress than control cells

You need copper for your skin and your vascular system (and Im sure a lot more)

One in vivo comparison of GHK versus GHK-Cu in rat experimental wounds found that GHK alone had no effect, and only the copper-bound GHK-Cu form produced a statistically significant increase in collagen accumulation evidence that the copper ion itself, not the peptide backbone alone, may be responsible for much of the collagen-stimulating activity

Always follow your labs SOPs