Copper Peptides Benefits: What GHK-Cu Really Does for Skin

By the Peptide Cream Reviews editorial team · Updated

Copper peptides have gone from a niche ingredient to a skincare staple. The main one, copper tripeptide-1, also known as GHK-Cu, is among the most studied cosmetic peptides. Here is what it is, what the research does and does not show, and how to use it.

What is GHK-Cu?

GHK is a tiny peptide made of three amino acids (glycine, histidine and lysine) that naturally binds copper. It was first identified in human plasma, and research by Loren Pickart and colleagues reported that levels decline with age. In skincare it is used as a "carrier peptide" that delivers copper to the skin.

Potential benefits

  • Firmer-looking skin: studies and reviews link GHK-Cu to skin remodeling processes involving collagen and elastin.
  • Softer fine lines: small cosmetic trials report smoother-looking skin over 8 to 12 weeks.
  • Skin comfort: it is also studied for its role in skin recovery and calming.

Reality check: most studies are small or lab-based, and results from a finished product depend on the whole formula. A review in the International Journal of Molecular Sciences (Pickart and Margolina, 2018) is a good overview of the research.

How to use copper peptides

  • Use them in a moisturizer or eye cream once or twice daily.
  • Keep strong acids and high-strength vitamin C at a different time of day as a precaution.
  • Pair them with sunscreen; no anti-aging ingredient works well without it.
  • Give it 8 to 12 weeks before judging results.

Creams that contain copper tripeptide-1

Both Revitol peptide creams include copper tripeptide-1 alongside other peptides:

  • Revitol Anti-Aging Peptide Cream: copper tripeptide-1 + Matrixyl® + Argireline®, with 5% niacinamide and ceramides, for face and neck.
  • Revitol Eye Cream: copper tripeptide-1 plus four more peptides, caffeine and hyaluronic acid, for the eye area.

Check Peptide Cream price →Official Revitol store · 60-day money-back guarantee

Check Eye Cream price →Official Revitol store · 60-day money-back guarantee

Frequently asked questions

What do copper peptides do for skin?

Copper peptides, mainly copper tripeptide-1 (GHK-Cu), are associated with improvements in the look of firmness, fine lines and skin smoothness, and with supporting the skin's natural renewal processes.

Can you use copper peptides every day?

Yes, in a moisturizer at normal cosmetic levels most people can use them daily. Stop if you notice irritation.

Can I use copper peptides with vitamin C?

As a precaution, many people use high-strength vitamin C in the morning and copper peptide products at night.

Are copper peptides safe?

They are widely used in cosmetics and generally well tolerated. Very high concentrations can irritate some people, which is one reason to choose a balanced moisturizer rather than a pure serum.