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GHK-Cu

A copper peptide for anti-aging skin, wound healing, and hair regrowth. GHK-Cu (Copper Peptide) is a naturally occurring tripeptide with a copper ion that declines with age. Researched for wound healing, skin regeneration, anti-aging, hair growth, and collagen synthesis. Available in topical and injectable forms for research.

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🧬Key Characteristics
  • Length: 3 amino acids + Cu²⁺
    (Tripeptide-copper complex.)
  • Natural levels: Decline with age
    (~200 ng/mL at 20, ~80 ng/mL at 60.)
  • Forms: Topical & injectable
    (Both forms used in research.)
  • Primary Use: Skin/anti-aging
    (Collagen, wound healing, hair growth.)
Peptide sequence
Gly-His-Lys:Cu²⁺
The copper ion (Cu²⁺) is essential for GHK-Cu's biological activity. The tripeptide binds copper and delivers it to cells where it activates regenerative processes.
Key takeaway: GHK-Cu is a potent signaling molecule that activates genes involved in tissue remodeling, wound healing, and anti-aging. The copper component is essential for its regenerative effects on skin, hair, and connective tissue.

Overview

Core Benefits

Key Advantages
Tissue repair
Studied for accelerating healing of tendons, ligaments, muscles, and other tissues.
Anti-inflammatory
May help reduce inflammation at injury sites and throughout the body.
Wound healing
Research shows potential for faster wound closure and tissue regeneration.
Gut health
Some healing peptides show benefits for gut lining and digestive health.
Joint support
May support joint comfort and mobility during recovery.
Synergistic stacking
Often combined with other healing peptides for comprehensive recovery.

These are educational summaries of commonly discussed effects in wellness/regenerative contexts, not guarantees.

GHK-Cu Results Timeline

Progression
1
Week 1–2
Physical Changes
Initial inflammatory response modulation, early tissue repair signals
Performance & Recovery
May notice reduced discomfort at injury sites
Other Benefits
Improved gut comfort (if applicable), better sleep quality
2
Week 3–4
Physical Changes
Visible improvement in healing tissues, reduced swelling
Performance & Recovery
Increased mobility and flexibility in affected areas
Other Benefits
Enhanced recovery from workouts, improved overall well-being
3
Month 2–3
Physical Changes
Significant tissue repair progress, improved joint comfort
Performance & Recovery
Return to normal activity levels, reduced pain
Other Benefits
Systemic healing benefits, improved skin quality
4
3+ Months
Physical Changes
Near-complete healing of targeted tissues
Performance & Recovery
Full functional recovery in many cases
Other Benefits
Cumulative benefits build over multiple 8-week on/off cycles; many see best results with 2-3 cycles

Timeline is illustrative and non-guaranteed. Outcomes vary and are commonly discussed alongside training, nutrition, sleep, and cycling practices.

How It Works

Copper Peptide — Regenerative / Wound Healing

Target → Repair Signal → Tissue Healing → Outcomes

🎯
Target

Multiple: Copper-Dependent Enzymes + Gene Expression

GHK-Cu is a naturally occurring copper-binding peptide. The tripeptide (Gly-His-Lys) delivers copper to tissues, activating copper-dependent enzymes involved in collagen synthesis, antioxidant defense, and wound healing. It also modulates expression of over 4,000 genes.

Cellular Signal

Gene Expression Modulation → Tissue Regeneration

GHK-Cu resets gene expression patterns toward a younger, more regenerative profile. It upregulates collagen, decorin, and other extracellular matrix components while downregulating inflammatory and tissue-destructive genes. The copper delivery activates superoxide dismutase and other protective enzymes.

🔄
Systemic Effect

Skin Regeneration + Hair Growth + Tissue Repair

Enhanced collagen production improves skin elasticity and wound healing. Follicle stimulation supports hair growth. Systemic anti-inflammatory and antioxidant effects. Available both as injectable (systemic) and topical (localized skin/hair).

What You Notice

Skin Quality → Hair Improvement → Healing

Improved skin texture and elasticity (weeks to months). Hair thickening and growth support. Faster wound healing. Injectable provides systemic effects while topical targets skin and hair specifically. Often combined with microneedling for enhanced penetration.

What Makes This Peptide Different

GHK-Cu is unique as a copper-delivery peptide that modulates thousands of genes. Unlike targeted peptides that affect one pathway, GHK-Cu resets broad gene expression patterns toward regeneration. Available both as injectable (systemic) and topical (skin/hair). Naturally present in blood plasma but declines with age.

Dosing Protocol

Healing / Skin / Hair

Educational reference only. Individual responses vary. Consult healthcare provider before use.

Vial Size
50 mg
Reconstitution
3 ml BAC water
Dose
1-2 mg (6-12 units at 1.7mg/unit)
Timing
AM
Frequency
Daily
Duration
8 weeks on, 8 weeks off
Protocol Notes
Copper peptide. Also available as topical for skin/hair. Injectable provides systemic regenerative effects.
Read the full dosing guide — protocols, reconstitution, clinical context & more

Popular Stack Protocols

1 stack

Commonly paired protocols from the peptide research community. Educational reference only.

🧬 BPC-157 + GHK-Cu

Healing / Skin / Tissue Repair
Dose
500 mcg
Vial Size
10 mg
Reconstitution
2 ml BAC water
Dose
1–2 mg
Vial Size
50 mg
Reconstitution
3 ml BAC water
Timing
AM
Frequency
Daily
Duration
8 weeks on, 8 weeks off
BPC-157 handles deep tissue repair (tendons, gut, vasculature) while GHK-Cu excels at skin remodeling, collagen synthesis, and wound healing. GHK-Cu also activates genes involved in tissue remodeling that BPC-157 doesn't directly target. Complementary for post-surgical or injury recovery with a skin/cosmetic component.

Why This Dosing Protocol

Why daily? GHK-Cu's gene-modulatory effects require consistent presence to maintain the regenerative gene expression profile.

Topical vs Injectable: Topical is preferred for skin and hair targets. Injectable provides broader systemic regenerative effects. Both are effective for their respective applications.

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Stacks

GHK-Cu is commonly paired with ipamorelin in GH-axis research discussions. For comparing bundles fairly, we normalize stack value using the GHK-Cu amount as the driving peptide (assuming ratios remain consistent as bundle sizes scale).

BPC-157 + GHK-Cu + TB-500

Glow Stack

Sorted by cost per mg of CJC. COA = Certificate of Analysis (vendor-provided lab documentation).
VendorStackPrice$/mg (CJC)COALink
Certified Pep80mg$158.00$1.98Go →

Reconstitution calculator

Dilution math and unit conversions. Prefilled using a common vial size for this peptide.

Open calculator

Educational Videos

How to Reconstitute Peptides

Handling

Educational overview on storage, labeling, and traceability considerations for lab environments. Consult primary literature and vendor documentation for specifics.

Powder Storage (Very Stable)
  • Freezer (-20°C): 1+ year ✓
  • Refrigerator (2-8°C): 1-3 months ✓
  • Room temperature: 2-3 weeks (emergency only)
Reconstituted Storage (Fragile)
  • MUST refrigerate at 2-8°C
  • 4-week maximum shelf life
  • NEVER freeze after reconstitution
  • Use bacteriostatic water for multi-dose

Storage & Handling Guide

Learn proper storage temperatures, shelf life timelines, reconstitution best practices, and travel tips for lyophilized and reconstituted peptides.

Powder: Freezer
1+ year at -20°C
Reconstituted: Fridge
4 weeks max at 2-8°C
View Complete Storage Guide

FAQ

What is GHK-Cu used for?

GHK-Cu (copper peptide) is researched for wound healing, skin regeneration, anti-aging, hair growth, and collagen synthesis. It naturally occurs in the body but declines with age. Available in topical and injectable forms for different research applications.

What is GHK-Cu and how does it work?

GHK-Cu is a naturally occurring tripeptide (glycyl-L-histidyl-L-lysine) bound to copper. It works by activating genes involved in tissue remodeling — upregulating collagen, elastin, and glycosaminoglycan synthesis while suppressing inflammation and oxidative damage. The copper ion is essential for its biological activity.

Why do GHK-Cu levels decline with age?

GHK-Cu is abundant in youth (around 200 ng/mL in plasma at age 20) but drops to about 80 ng/mL by age 60. This decline correlates with reduced wound healing, skin aging, and decreased regenerative capacity. Restoring GHK-Cu levels is a target for anti-aging research.

Can GHK-Cu be used topically or does it need injection?

Both routes work but for different purposes. Topical GHK-Cu (creams, serums) is popular for skin anti-aging and wound healing — it penetrates skin reasonably well. Injectable GHK-Cu provides systemic effects and is used for deeper tissue healing, hair growth, and broader anti-aging benefits.

Does GHK-Cu help with hair growth?

Yes, research shows GHK-Cu can stimulate hair growth by increasing hair follicle size, prolonging the anagen (growth) phase, and improving scalp blood flow. It's often used topically on the scalp or combined with microneedling. Some protocols combine it with other hair growth peptides like PTD-DBM.

What are the anti-aging effects of GHK-Cu?

GHK-Cu stimulates collagen and elastin production, reduces fine lines and wrinkles, improves skin firmness and elasticity, reduces hyperpigmentation, and accelerates wound healing. It also has antioxidant properties and can help with skin repair after procedures like laser treatments or chemical peels.

Can GHK-Cu help with tissue healing?

Yes, GHK-Cu is one of the most studied peptides for wound healing. It accelerates wound closure, reduces scarring, promotes angiogenesis (new blood vessel formation), and attracts immune cells to injury sites. It's been researched for surgical wounds, burns, and chronic non-healing ulcers.

What are the side effects of GHK-Cu?

GHK-Cu is generally very well-tolerated as it's a naturally occurring peptide. Topical use rarely causes irritation. Injectable use may cause mild injection site reactions. Some report temporary skin flushing. Excessive copper intake should be avoided, so don't combine multiple copper-containing supplements without consideration.

How long does reconstituted peptide last?

Once mixed with bacteriostatic water, peptides remain stable for up to 4 weeks when refrigerated at 2-8°C (36-46°F). Unopened powder can last 1+ year in the freezer. Get our complete Storage & Travel Guide.

Is this peptide legal to purchase?

Peptides sold "for research purposes only" are legal to purchase in the US, but are not FDA-approved for human use outside of specific medical applications. Always consult a healthcare provider before use.

New to peptides?

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Scientific Sources

The following peer-reviewed studies and official resources provide additional scientific context for this peptide:

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