ghk-cu peptide side effects Peptides Before and After: Dosage, Benefits & How It Works for Skin and Hair Part 2 of my favourite

It's unclear how a hydrophilic peptide would interact with an enzyme that processes steroid hormones

Whether that reshuffling translates into anything functional, into real changes in how a cell ages, behaves, or secretes molecules, is a separate question each study has to test on its own terms

GHK-Cu 1 The activity of GHK-Cu is thought to be multifaceted and includes: GHK-Cu has been associated with the upregulation of genes involved in tissue repair, anti-inflammatory signaling, and antioxidant defense, and the downregulation of genes linked to fibrosis and oxidative stress

Mol Genet Genomics 291, 16391646 (2016)