You may notice flaky patches, rough texture, peeling, persistent redness, or a burning and stinging sensation after applying skincare products
Researchers also investigate its function in maintaining protein thiol homeostasis, regulating enzyme activity through protein glutathionylation, and serving as a cofactor for glutathione peroxidase enzymes that neutralize lipid peroxides and hydrogen peroxide
The bottom line Copper peptides and GHK-Cu sit at an interesting intersection: enough early science to be genuinely exciting, not yet enough to call them proven
If you use many antioxidants or certain medicines, ask your doctor about timing to avoid interactions
Injectable GHK-Cu has no proven ability to tighten skin and carries significant health risks, including copper toxicity and infections
Additionally, you can use targeted nutrients to increase your body's natural production of glutathione indirectly