Copper Peptides in Skincare: What Is GHK-Cu?
Copper peptides have become a familiar name in advanced skincare, but what do they actually mean for your routine? Here’s a closer look at GHK-Cu, where it appears in Exoblanc products, and the difference between using it at home and in a professional treatment.
What is GHK-Cu?
GHK-Cu is a peptide made from three amino acids bound to copper. On an ingredient list, you’ll usually find it under the name Copper Tripeptide-1. It’s one of many peptides used in skincare, which is why a product labelled “peptides” does not necessarily contain GHK-Cu.
Researchers have studied copper peptides for their relationship with skin structure and renewal. It’s an interesting area of skincare science, although results from studies of an ingredient cannot automatically be applied to every finished product. The formula, how it is used and the rest of your routine all matter.
At Exoblanc, you can find Copper Tripeptide-1 in two homecare products: Relief Bubble Cleanser and Refine Peeling Ampoule. It is also a key ingredient in COS RE Restorative Ampoule, which is developed exclusively for professional use.
Copper peptides in your homecare routine
Relief Bubble Cleanser brings Copper Tripeptide-1 into the first step of a daily routine. Its soft foam removes everyday build-up while leaving skin feeling clean and comfortable. Because it is rinsed off, it plays a different role from a leave-on treatment.
For a more targeted step, Refine Peeling Ampoule combines GHK-Cu with PHA and LHA. The exfoliating acids help improve the appearance of rough texture, congestion and visible pores, while the formula also includes hydrating and comforting ingredients. If your skin is sensitive or new to exfoliating acids, introduce Refine gradually and follow its usage directions. Use SPF during the day.
Copper peptides can sit within a wider skincare routine. After Refine, you can follow with Boosting Serum and Boosting Cream for hydration and moisture. These products contain other peptides; they are not being presented here as GHK-Cu products.
How is COS RE different?
COS RE Restorative Ampoule belongs to the Exoblanc professional COS range. It combines Copper Tripeptide-1 with ingredients including sodium DNA, sodium hyaluronate and niacinamide, and is selected by trained practitioners as part of a personalised microneedling treatment.
COS RE is a professional treatment ampoule, not an at-home copper peptide serum. If you are having microneedling, your practitioner can advise which treatment and aftercare products suit your skin.
Which copper peptide product should you choose?
For everyday cleansing, start with Relief Bubble Cleanser. If your main concerns are uneven texture, congestion or visible pores, explore Refine Peeling Ampoule as a leave-on evening treatment. For a professional microneedling treatment, ask your practitioner about COS RE.
You can also explore the full Exoblanc range to build a routine around your skin’s needs. Copper peptides are one part of that routine; consistent cleansing, hydration and daily sun protection matter too.
