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Opening a jar of Neurogan HEalth skincare. Text: Copper Peptide Benefits, Risks, and Results

Copper Peptide (GHK-Cu) Benefits, Risks, and Results

Many people are on a quest for the fountain of youth, and the science behind copper peptides like GHK-Cu shows promising benefits for maintaining youthful skin.

Copper peptides, particularly GHK-Cu, combine the tripeptide glycyl-l-histidyl-lysine (GHK) and copper (Cu).

This copper complex, found naturally in our bodies, has many important jobs. It helps start the wound-healing process, draws in immune cells that protect our body (like a security team), and assists in reducing swelling.

It also encourages the production of collagen, a protein that keeps skin firm and stretchy, and glycosaminoglycans, like super-hydrators for the skin. Plus, it plays a role in creating new blood vessels. All these tasks are crucial for keeping our skin healthy and aiding in its ability to repair and renew itself.

Because of its affinity to skin and hair tissue, GHK-Cu is a versatile ingredient in many skincare products marketed to aid skin repair, skin firmness, and anti-aging. While it's not a cure or an aging treatment, many find it a valuable addition to their skincare routines for its perceived benefits.

In this article, we'll get skin-deep into the benefits of GHK-Cu, its different applications, and how incorporating this ingredient into your skincare regimen could be a game-changer.

What do Copper Peptides Do?

Copper peptide blue powder

GKU-Cu is just one type of the many types of copper peptides, which are natural protein fragments enriched with copper. These tiny compounds play a wide range of functions in the human body — not just limited to skin and hair care.

At their core, copper peptides are involved in tissue and regeneration. They help orchestrate the body's response to injury and stress by signaling for repair, calling the necessary cells, as an anti-inflammatory agent, to the site of damage, whether skin, muscle, or bone tissue [1].

Copper peptides also have antioxidant properties, which means they're active in protecting cells from oxidative stress — a key factor in cellular damage and aging.

Furthermore, copper peptides are believed to play a part in the body's overall maintenance and wellness by supporting nervous system function and potentially aiding the repair of nerves and brain tissue.

It's easy to see why copper peptides have become so popular in the subjects of aging skin and hair loss. They exhibit multiple cellular pathways for repair, supporting the immune response, and maintaining overall health. This fascination isn't limited to external beauty but extends to understanding how these tiny molecules can support how we feel as we age.

That said, it's important to approach copper peptide benefits with a balanced perspective. 

Copper peptides, including GHK-Cu, aren't a miraculous solution to aging or other health issues. While the research surrounding them is promising, the information we highlight should be considered a part of a larger picture of caring for your health and wellness.

Benefits of GHK CU (Potentially)

GHK-Cu or Glycyl-L-Histidyl-L-Lysine-Copper, is the most popular and well-researched copper peptide. 

We'll take a closer look at the research on GHK-Cu. However, we want to clarify that the insights and information provided in this blog post are purely for educational purposes only and should not be interpreted as medical advice.

Our goal is to help scratch that curious itch, offering a window into the intriguing science behind GHK-Cu while encouraging readers to make informed decisions in consultation with healthcare professionals.

1. Skin Rejuvenation

Woman skin care in the bathroom

Skin rejuvenation encompasses GHK-Cu's potential to reduce the signs of aging like wrinkles, fine lines, and age spots and improve skin texture and tone.

In 2018, scientists published a study showing the GHK-Cu's promise in skin regeneration by encouraging the growth of blood vessels and nerves and boosting collagen production, which may help to tighten loose skin [1].

This understanding of skin rejuvenation is why GHK-Cu is commonly found in topical creams for aged skin and acne-prone skin with mottled hyperpigmentation. By incorporating GHK-Cu in skincare formulations, these products leverage its ability to support the skin's natural renewal processes. The GHK-Cu supplements include eye creams, serums, and facial creams, and they have  all become a growing staple in an anti-aging skincare routine. 

2. Wound Healing

Hand with a small cut on the fingetip

GHK-Cu's role in wound healing is a significant aspect of its sought-out benefits.

GHK-Cu stimulates the growth of blood vessels and nerves, encourages collagen, elastin, and glycosaminoglycan production — all crucial for wound healing [2].

The formation of new blood vessels, "angiogenesis," ensures adequate blood flow and nutrients to the healing tissues, further helping repair.

GHK-Cu cream, like GHK-CU Face cream for wound healing, is formulated to be gentle and suitable to apply to damaged skin. It might be combined with other ingredients for their healing and soothing properties, like aloe vera or hyaluronic acid. 

Some of these can be found over-the-counter, and those with more substantial GHK-Cu concentrations may require a prescription under medical supervision, typically in cases of more severe or complex skin injuries.

3. Hair Growth Stimulation

Woman looking at the ends of her hair

The potential of GHK-Cu in promoting hair growth has been explored in multiple studies.

Its beneficial effects on skin health translate similarly to hair growth. The properties that make GHK-Cu effective in improving skin appearance — such as stimulating collagen production and supporting cellular health – also contribute to its positive impact on hair growth [3, 4].

4. Protecting Brain Health

Brain doctor

Internal GHK-Cu supplements have been a more recent area of research for their potential to address cognitive decline associated with aging.

One study on mice showed that intranasal administration of copper peptides improved cognitive performance, particularly in spatial memory and learning navigational tasks.

The mice treated with GHK-Cu also exhibited decreased markers of neuroinflammation and axonal damage compared to those treated with a saline solution [5].

This suggests that GHK-Cu may have protective effects against brain aging and could potentially be useful in treating age-related cognitive impairment​​, but we're a long way off from seeing these experiments in clinical trials.

GHK-Cu Injection Benefits

While a good GKU-cu eye cream might suffice for most people's anti-aging skincare regimen, some want a more direct method of delivering this copper peptide into the body.

GHK-Cu injections are administered by a dermatologist or medical practitioner in a medispa for more targeted therapeutic use, such as enhanced skin firmness, increased skin density, and hair growth.

This cosmetic procedure is considered minimally invasive compared to more extensive surgical procedures. It involves fine needles to deliver GHK Cu peptide directly into the troubled area, typically on the face or scalp.

GHK-Cu injections have little to no downtime, with patients returning to their routines shortly after the treatment. However, with any injection-based treatment, there is a risk of redness, swelling, bruising, and injection at the injection site.

GHK Cu Before & After

GHK-Cu has been studied since its discovery in 1973, but specific "before and after" studies aren't widely documented.

In terms of benefits, GHK-Cu is great for skin and hair. It can stimulate blood vessel growth, protect skin from UV damage, reduce inflammation, and help hair grow thicker. For skincare, it's known to make skin firmer, improve elasticity, reduce wrinkles, and lessen damage from the sun.

It's also worth highlighting that the results of using GHK-Cu can vary from person to person.

This variation depends on several factors, including the type of GHK-Cu product used, individual skin and hair conditions, and other personal health aspects like diet, stress, and environment.

Different formulations of GHK-Cu, such as creams, serums, or injections, may have varying effects. Additionally, each person's unique skin and hair type can respond differently to GHK-Cu treatments.

Factors like age, lifestyle, and overall health will influence the effectiveness of GHK-Cu, which is why, while many people may experience positive outcomes like having clearer and more youthful skin or fuller hair, having realistic expectations and understanding that results may differ is important.

The Takeaway: GHK Cu Benefits

Bottle of Copper Peptide Face Cream

As we wrap up this GHK-Cu benefits highlight, it's clear that this compound offers intriguing possibilities for skin care, hair loss, and wound healing.

It's important to remember, however, that individual experiences may vary. Our bodies naturally produce less GHK-Cu as we age — incorporating it through trusted skincare products or internal supplements might be beneficial alongside a healthy diet, regular exercise, maintaining meaningful relationships, and stress management. 

We encourage you to dive into your research and consult with healthcare professionals to understand how GHK-Cu can fit into your wellness routine.

As with any skincare ingredient, choosing products from reputable sources and understanding their potential is key to making informed decisions for your health and beauty needs.


  1. Pickart, L., & Margolina, A. (2018). Regenerative and protective actions of the GHK-Cu peptide in the light of the new gene data. International journal of molecular sciences, 19(7), 1987.
  2. Pickart, L., & Margolina, A. (2018). Regenerative and protective actions of the GHK-Cu peptide in the light of the new gene data. International journal of molecular sciences, 19(7), 1987.
  3. Pickart, L. (2008). The human tri-peptide GHK and tissue remodeling. Journal of Biomaterials Science, Polymer Edition, 19(8), 969-988.
  4. Siméon, A., Emonard, H., Hornebeck, W., & Maquart, F. X. (2000). The tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+ stimulates matrix metalloproteinase-2 expression by fibroblast cultures. Life Sciences, 67(18), 2257-2265.
  5. Tucker, M., Keely, A., Park, J. Y., Rosenfeld, M., Wezeman, J., Mangalindan, R., ... & Ladiges, W. C. (2023). Intranasal GHK peptide enhances resilience to cognitive decline in aging mice. bioRxiv, 2023-11.
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Katrina Lubiano

Based in Canada, Katrina is an experienced content writer and editor specializing in health and wellness. With a journalistic approach, she's crafted over 900,000 words on supplements, striving to debunk myths and foster a holistic approach to healthi...