---
title: "Copper Tripeptide (GHK-Cu) Serum — Evidence, Benefits &… | Magellan"
description: "Copper Tripeptide (GHK-Cu) Serum — Copper tripeptide-1, commonly known as GHK-Cu, is a naturally occurring complex of the human tripeptide…"
url: "https://magellanlongevity.com/p/186.md"
canonical: "https://magellanlongevity.com/p/186.html"
html: "https://magellanlongevity.com/p/186.html"
type: "product"
section: "Skin & Topical Longevity"
evidence_grade: "Preliminary"
evidence_tier: "preliminary"
citations: 21
product_id: 186
price_usd: 32
updated: 2026-09-02
author: "Gabriel Radu, DO"
author_credentials: "Physiatrist (PM&R). NY medical license 275110. NPI 1376861765."
publisher: "Magellan Longevity"
content_format: "markdown"
license: "Educational content — not medical advice"
---

# Copper Tripeptide (GHK-Cu) Serum

[Home](https://magellanlongevity.com/) › [Skin & Topical Longevity](https://magellanlongevity.com/c/6.md) › Copper Tripeptide (GHK-Cu) Serum

**HTML version:** https://magellanlongevity.com/p/186.html · **In the Magellan app:** https://magellanlongevity.com/#/product/186

## Key facts

| Field | Value |
| --- | --- |
| Product | Copper Tripeptide (GHK-Cu) Serum |
| Category | [Skin & Topical Longevity](https://magellanlongevity.com/c/6.md) |
| Evidence grade | Preliminary (C-) |
| Peer-reviewed citations | 21 |
| Typical listed price | $32.00 (check the live price) |
| Where to buy | [Search Amazon](https://www.amazon.com/s?k=Copper%20Tripeptide%20%28GHK-Cu%29%20Serum&tag=magellanlong-20) |
| Catalog ID | 186 |

## What it is

Copper tripeptide-1, commonly known as GHK-Cu, is a naturally occurring complex of the human tripeptide glycyl-L-histidyl-L-lysine (GHK) bound to a copper(II) ion. GHK is present in human plasma, saliva, and urine, where its concentration declines with age, and it has a high affinity for copper, forming the GHK-Cu chelate. In skin, the complex is reported to act as a signal for tissue remodeling and repair—stimulating synthesis of collagen, elastin, and glycosaminoglycans while modulating matrix metalloproteinases—and it also has antioxidant and anti-inflammatory activity.

## Its role in longevity

Reviews and laboratory studies indicate GHK-Cu can stimulate collagen and elastin production, support wound healing, and reduce inflammation and oxidative stress. However, rigorous human evidence is thin: no adequate placebo-controlled trials of GHK-Cu alone for photoaging or wrinkles exist, and the best controlled human study—a randomized split-face trial after laser resurfacing—found no objective benefit over control for redness, wrinkles, or skin quality, though patients reported higher satisfaction. An irradiated-wound animal model likewise found no benefit over control. Poor skin penetration is a recognized bottleneck, and recent formulation science using liposomal encapsulation aims to improve delivery. Dermatologists generally regard it as a supportive rather than transformative anti-aging ingredient, with human cosmetic efficacy unproven. This evidence describes the GHK and GHK-Cu compound and its mechanisms, not this specific commercial serum.

## Evidence grade: Preliminary

- **What the grade means:** Curated grade based on the human and mechanistic evidence for this compound.
- **What this grade does not say:** Decades of laboratory and animal data show wound-healing and collagen-stimulating effects, but rigorous human trials for skin aging are essentially absent — the best controlled study found no objective benefit, only higher patient satisfaction. Skin penetration is a known limitation that newer liposomal formulations are trying to solve.

## In the news

- **A Dermatologist's Take on the Copper Peptide (GHK-Cu) Trend** — Westlake Dermatology 2026 [Read it](https://www.westlakedermatology.com/trends/ghk-cu-copper-peptides-for-skin-care/)
  > While GHK-Cu peptides can provide some benefits, they are usually not as profound as what is marketed online.
- **Copper Peptides: The Secret Skincare Ingredient Your Dermatologist Loves** — Marie Claire 2025 [Read it](https://www.marieclaire.com/beauty/skincare/copper-peptides/)
  > Copper peptides help stimulate collagen and elastin production, which improves firmness and elasticity over time, while also promoting wound healing and reducing inflammation

## The research

Peer-reviewed studies on the active compound. Quotes are verbatim from the cited abstract. Research describes the active mechanism and is not a claim about this specific product.

### Cited studies

1. **Evidence: stimulates collagen and repair**
   J Biomater Sci Polym Ed 2008 · [PMID 18644225](https://pubmed.ncbi.nlm.nih.gov/18644225/) · [DOI 10.1163/156856208784909435](https://doi.org/10.1163/156856208784909435)

   > it tightens skin, improves elasticity and reduces fine lines and photodamage

2. **In vivo stimulation of connective tissue accumulation by the tripeptide-copper complex GHK-Cu in rat wounds**
   J Clin Invest 1993 · [PMID 8227353](https://pubmed.ncbi.nlm.nih.gov/8227353/) · [DOI 10.1172/JCI116842](https://doi.org/10.1172/JCI116842)

   > GHK-Cu increases extracellular matrix accumulation in wounds through stimulation of collagen synthesis

3. **GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration.**
   Biomed Res Int 2015 · [PMID 26236730](https://pubmed.ncbi.nlm.nih.gov/26236730/) · [DOI 10.1155/2015/648108](https://doi.org/10.1155/2015/648108)

   > In cosmetic products, it has been found to tighten loose skin and improve elasticity, skin density, and firmness, reduce fine lines and wrinkles, reduce photodamage, and hyperpigmentation, and increase keratinocyte proliferation.

4. **The potential of GHK as an anti-aging peptide.**
   Aging Pathobiol Ther 2020 · [PMID 35083444](https://pubmed.ncbi.nlm.nih.gov/35083444/) · [DOI 10.31491/apt.2020.03.014](https://doi.org/10.31491/apt.2020.03.014)

   > GHK-Cu has been shown to promote skin remodeling, wound healing and regeneration, and has prominent antioxidant and anti-inflammatory effects in in vitro and in vivo studies.

5. **The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline.**
   Brain Sci 2017 · [PMID 28212278](https://pubmed.ncbi.nlm.nih.gov/28212278/) · [DOI 10.3390/brainsci7020020](https://doi.org/10.3390/brainsci7020020)

   > Studies using the Broad Institute Connectivity Map show that GHK peptide modulates expression of multiple genes, resetting pathological gene expression patterns back to health.

6. **The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health.**
   Oxid Med Cell Longev 2012 · [PMID 22666519](https://pubmed.ncbi.nlm.nih.gov/22666519/) · [DOI 10.1155/2012/324832](https://doi.org/10.1155/2012/324832)

   > The human tripeptide GHK was discovered in 1973 as an activity in human albumin that caused old human liver tissue to synthesize proteins like younger tissue.

7. **Effect of tripeptide-copper complexes on the process of skin wound healing and on cultured fibroblasts.**
   Arch Int Pharmacodyn Ther 1995 · [PMID 8836453](https://pubmed.ncbi.nlm.nih.gov/8836453/)

   > The products studied at a concentration of 10(-7) M, decreased cell reproduction and increased collagen expression.

8. **Biotinylated GHK peptide incorporated collagenous matrix: A novel biomaterial for dermal wound healing in rats.**
   J Biomed Mater Res B Appl Biomater 2005 · [PMID 15803494](https://pubmed.ncbi.nlm.nih.gov/15803494/) · [DOI 10.1002/jbm.b.30246](https://doi.org/10.1002/jbm.b.30246)

   > Wound contraction, increased cell proliferation, and high expression of antioxidant enzymes in PIC treated group indicate enhanced wound healing activity when compared to CF and CR groups.

9. **In situ photo-crosslinkable hyaluronic acid-based hydrogel embedded with GHK peptide nanofibers for bioactive wound healing.**
   Acta Biomater 2023 · [PMID 37832839](https://pubmed.ncbi.nlm.nih.gov/37832839/) · [DOI 10.1016/j.actbio.2023.10.011](https://doi.org/10.1016/j.actbio.2023.10.011)

   > The hydrogels provided a microenvironment that promoted the proliferation of dermal fibroblasts and the activation of cytokines, leading to reduced inflammation and increased collagen expression during wound healing.

10. **Food-Derived Tripeptide-Copper Self-Healing Hydrogel for Infected Wound Healing.**
    Biomater Res 2025 · [PMID 39902373](https://pubmed.ncbi.nlm.nih.gov/39902373/) · [DOI 10.34133/bmr.0139](https://doi.org/10.34133/bmr.0139)

    > The GEK hydrogel, exhibiting both antibacterial and anti-inflammatory properties, plays a hemostatic role by adhering to tissues and promoting neovascularization and serves as an optimal dressing for skin regeneration.

11. **Biomimetic Hydrogel Scaffolds with Copper Peptide-Functionalized RADA16 Nanofiber Improve Wound Healing in Diabetes.**
    Macromol Biosci 2022 · [PMID 35598070](https://pubmed.ncbi.nlm.nih.gov/35598070/) · [DOI 10.1002/mabi.202200019](https://doi.org/10.1002/mabi.202200019)

    > It shows that the functionalized nanofiber scaffolds significantly accelerated wound closure, collagen deposition, and tissue remodeling both in healthy and diabetic mice.

12. **Tripeptide-copper complex GHK-Cu (II) transiently improved healing outcome in a rat model of ACL reconstruction.**
    J Orthop Res 2015 · [PMID 25731775](https://pubmed.ncbi.nlm.nih.gov/25731775/) · [DOI 10.1002/jor.22831](https://doi.org/10.1002/jor.22831)

    > Intra-articular supplementation with a bioactive small molecule GHK-Cu improved graft healing following ACLR in rat, but the beneficial effects could not last as treatment discontinued.

13. **Effects of topical copper tripeptide complex on wound healing in an irradiated rat model.**
    Otolaryngol Head Neck Surg 2013 · [PMID 23744835](https://pubmed.ncbi.nlm.nih.gov/23744835/) · [DOI 10.1177/0194599813492644](https://doi.org/10.1177/0194599813492644)

    > Irradiated dorsal rat flaps treated with topical GHK-Cu gel demonstrated no difference in flap ischemia, blood vessel number or area, or VEGF expression compared to controls.

14. **Protective effects of GHK-Cu in bleomycin-induced pulmonary fibrosis via anti-oxidative stress and anti-inflammation pathways.**
    Life Sci 2019 · [PMID 31809714](https://pubmed.ncbi.nlm.nih.gov/31809714/) · [DOI 10.1016/j.lfs.2019.117139](https://doi.org/10.1016/j.lfs.2019.117139)

    > GHK-Cu presented a protective effect in BLM-induced inflammation and oxidative stress by inhibiting EMT progression and suppressing TGFβ1/Smad2/3 signalling in pulmonary fibrosis.

15. **The glycyl-l-histidyl-l-lysine-Cutripeptide complex attenuates lung inflammation and fibrosis in silicosis by targeting peroxiredoxin 6.**
    Redox Biol 2024 · [PMID 38879894](https://pubmed.ncbi.nlm.nih.gov/38879894/) · [DOI 10.1016/j.redox.2024.103237](https://doi.org/10.1016/j.redox.2024.103237)

    > GHK-Cu can bind to PRDX6, thus attenuating lung inflammation and fibrosis in silicosis mice without significant systemic toxicity.

16. **Copper Complexes with New Glycyl-l-histidyl-l-lysine-Hyaluronan Conjugates Show Antioxidant Properties and Osteogenic and Angiogenic Synergistic Effects.**
    Bioconjug Chem 2025 · [PMID 40123442](https://pubmed.ncbi.nlm.nih.gov/40123442/) · [DOI 10.1021/acs.bioconjchem.4c00545](https://doi.org/10.1021/acs.bioconjchem.4c00545)

    > The results highlight copper's role in promoting the expression and release of certain trophic, angiogenic, and osteogenic factors, including brain-derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF), as well as bone morphogenetic protein-2 (BMP-2).

17. **Glycyl-l-histidyl-l-lysine prevents copper- and zinc-induced protein aggregation and central nervous system cell death in vitro.**
    Metallomics 2024 · [PMID 38599632](https://pubmed.ncbi.nlm.nih.gov/38599632/) · [DOI 10.1093/mtomcs/mfae019](https://doi.org/10.1093/mtomcs/mfae019)

    > Herein we demonstrate that the endogenous copper-binding tripeptide glycyl-l-histidyl-l-lysine (GHK) has the ability to bind to and reduce copper redox activity and to prevent copper- and zinc-induced cell death in vitro.

18. **Effect of locally injected medications on healing of pad wounds in dogs.**
    Am J Vet Res 1996 · [PMID 8669775](https://pubmed.ncbi.nlm.nih.gov/8669775/)

    > At 14 days, the amount of type-I collagen in TCC-injected wounds was significantly greater than that in other wounds.

19. **Effects of topical copper tripeptide complex on CO2 laser-resurfaced skin.**
    Archives of facial plastic surgery 2006 · [PMID 16847171](https://pubmed.ncbi.nlm.nih.gov/16847171/)

    > Randomized split-face study (n=13): topical copper tripeptide after CO2 laser resurfacing gave no objective benefit over control for erythema, wrinkles, or skin quality, though patient-reported satisfaction was higher (p=0.04).

20. **Liposomes as Carriers of GHK-Cu Tripeptide for Cosmetic Application.**
    Pharmaceutics 2023 · [PMID 37896245](https://pubmed.ncbi.nlm.nih.gov/37896245/)

    > Formulation study showing liposomal encapsulation can carry GHK-Cu into skin, addressing the peptide's recognized stratum-corneum penetration bottleneck.

21. **Are We Ready to Measure Skin Permeation of Modern Antiaging GHK-Cu Tripeptide Encapsulated in Liposomes?**
    Molecules (Basel, Switzerland) 2025 · [PMID 39795193](https://pubmed.ncbi.nlm.nih.gov/39795193/)

    > Methods study on reliably measuring skin permeation of liposome-encapsulated GHK-Cu, underscoring that delivery remains the field's open problem.

## Where to buy

[Search Amazon for Copper Tripeptide (GHK-Cu) Serum](https://www.amazon.com/s?k=Copper%20Tripeptide%20%28GHK-Cu%29%20Serum&tag=magellanlong-20) — affiliate search link.

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## Scope and disclosures

Educational information, not medical advice. Nothing here is intended to diagnose, treat, cure, or prevent any disease. Talk to your physician before starting any supplement or device, especially if you are pregnant, nursing, or taking medication.

Editorial firewall: evidence grades are assigned from the published research and are independent of any affiliate commission. As an Amazon Associate, Magellan Longevity earns from qualifying purchases.

Reviewed for accuracy by a board-certified physician (DO).