GHK-Cu (Copper Peptide)
A naturally occurring copper complex with powerful skin regeneration, anti-aging, and wound healing properties.
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Compound Profile
GHK-Cu (Copper Peptide)
Key Data
Research reference only
Research Focus
Preclinical data
⚠ Research & Educational Use Only. GHK-Cu (Copper Peptide) is a research chemical documented here for scientific education. All information references peer-reviewed literature and preclinical/clinical study data. Not for human consumption. Not medical advice. Consult a licensed researcher or healthcare professional before any laboratory use.
- Stimulates collagen and elastin synthesis — reduces wrinkles and improves skin elasticity
- Accelerates wound healing
- Reduces inflammation and oxidative stress
- GHK-Cu (Copper Peptide) is not FDA-approved for human use. It is a research chemical for scientific study only.
Research At a Glance
- Stimulates collagen and elastin synthesis — reduces wrinkles and improves skin elasticity
- Accelerates wound healing
- Reduces inflammation and oxidative stress
- Promotes hair follicle growth and combats hair loss
In Plain English
Simple summaryGHK-Cu is a copper-binding tripeptide that your body produces naturally -- and its levels drop substantially as you age, from around 200 ng/mL in your 20s to about 80 ng/mL by age 60. That decline matters because GHK-Cu is one of your body's active wound-healing signals: it's found in high concentrations in wound fluid and is thought to attract repair cells to injury sites, stimulate collagen synthesis, and modulate gene expression across a surprisingly broad range of genes. Studies suggest it influences expression of over 4,000 genes in human fibroblasts. In practical terms, most people encounter it in high-end skincare, where copper peptide products have solid evidence for improving skin elasticity and texture.
- Stimulates collagen and elastin synthesis — reduces wrinkles and improves skin elasticity
- Accelerates wound healing
- Reduces inflammation and oxidative stress
The full scientific detail, mechanisms, citations, and dosing data, follows below.
What is GHK-Cu (Copper Peptide)?
Tap any underlined term for an instant definition.
GHK-Cu is a naturally occurring copper complex first isolated from human plasma. It consists of the tripeptide glycyl-L-histidyl-L-lysine bound to a copper(II) ion. It is found naturally in blood, urine, and saliva. GHK-Cu has been extensively studied for its remarkable ability to stimulate collagen and elastin production, promote wound healing, reduce inflammation, and exert antioxidant effects. It acts as a powerful activator of gene expression, upregulating hundreds of genes involved in tissue repair while downregulating genes associated with inflammation and tumor progression. It is widely used in cosmetic formulations but also studied for systemic anti-aging effects.
By the Numbers
Key Research Benefits
Documented effects observed in preclinical and clinical studies on GHK-Cu (Copper Peptide). See all Skin & Anti-Aging peptides for comparison.
Common Stacks
GHK-Cu (Copper Peptide) is frequently combined with the following peptides for synergistic effects. Click any peptide to compare profiles before deciding.
Both target aging at the cellular level - GHK-Cu via extracellular matrix and Epitalon via telomere regulation.
GHK-Cu accelerates surface wound healing while TB-500 handles deeper tissue and vascular repair.
A comprehensive anti-aging skin and cell stack - GHK-Cu restores extracellular matrix while SS-31 restores mitochondrial function.
Side Effects & Risks
Adverse effects reported in the research literature. All data sourced from preclinical and clinical study reports. View all peptides' side effects →
Dosing Data from the Literature
Doses referenced below are sourced from published preclinical and clinical studies. Use the peptide dose calculator to convert these values to injection volume.
Topical: 1–3% concentrations in serums/creams applied 1–2x daily. Systemic (research): 1–2 mg subcutaneously daily or every other day. Hair regrowth protocols often use topical solutions at 0.1–1%. Systemic administration provides more comprehensive effects but topical is more practical for most applications.
Administration in Research Settings
Standard reconstitution and administration methodology for laboratory research use.
For topical use: apply to clean skin, avoid eye contact, let absorb fully before applying other products. For subcutaneous injection: reconstitute lyophilized form with bacteriostatic water; inject in areas near target tissues. For hair loss: mix topical solution and apply directly to scalp daily.
Research Video
Medical Expert Videos
Physicians, researchers, and pharmacologists explain GHK-Cu (Copper Peptide), covering mechanisms of action, clinical context, and study findings.
Videos sourced from YouTube search. KnowYourPeptide does not endorse any individual creator. For research education only.
The Bottom Line
GHK-Cu (Copper Peptide) has a growing body of preclinical evidence and a well-characterised safety profile in research settings. The most-studied application is: stimulates collagen and elastin synthesis — reduces wrinkles and improves skin elasticity.
The most commonly reported side effect in research subjects is generally very well-tolerated — among the safest peptides studied. It is a research chemical, not approved for human use.
Frequently Asked Questions
Explore Further
Quick Reference
Research Articles
- Kylo Peptides Review: Published Lot COAs, the Koi Rebrand, and What the Membership Actually Saves7 min read
- GHK-Cu Dosage Guide: Vial Reconstitution, Injection Volumes, and Research Protocols7 min read
- Matrixyl vs Argireline: Different Peptide Mechanisms for Skin Aging Research7 min read
- Collagen Peptides: What the Science Actually Shows7 min read
How It Compares
As a topical, GHK-Cu is often compared to retinol -- it's gentler on skin but produces meaningful collagen stimulation over time. For injectable repair protocols, BPC-157 has a stronger evidence base for tendon and gut tissue; GHK-Cu is more interesting for skin and wound healing specifically. The two compounds are occasionally stacked.
Compare GHK-Cu (Copper Peptide) side-by-sideResearch Use Only
This information is for educational research purposes only. This is not medical advice. Consult a qualified healthcare professional.