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GHK-Cu

Glycyl-L-Histidyl-L-Lysine Copper Complex

Natural copper complex first isolated in 1973. Extensively studied for skin, hair, and collagen applications.

Collagen synthesisWound healingHair follicle research

For research use only · Not for human consumption

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1 source for 1g·cheapest $50.00 at Atomik Labz·$50.00/mg
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Atomik LabzBEST
4.7
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Ascension Peptides
100mg · USA · Card / Crypto / Zelle
  • Third-party tested (Janoshik)
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  • 4.8★ community rating
$84.99$65.00
$0.29/mg
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Also solid
AMP Peptides
100mg · $0.53/mg
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Double R Labs
100mg · $0.42/mg
$49.99
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Welli Labs
100mg · $0.35/mg
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/ research index

The research base

Research Maturity
★★★★
4/5 — Volume of studies
Evidence Strength
★★★★
4/5 — Quality of evidence

150+ studies. Strong evidence for collagen synthesis and wound healing. Hair follicle research expanding.

/ mechanism of action

How it works

Upregulates collagen I, III, IV synthesis. Inhibits matrix metalloproteinase (MMP). Promotes tissue remodeling.

/ research dosing

Common research protocols

Range
1-2 mg/day (subQ) or 1-3% topical concentration
Frequency
Daily for skin/systemic; 3-5x/week for cycles
Route
Subcutaneous before bed, or topical applied to clean skin
Cycle
30-day cycles: 1mg/day days 1-15, escalate to 2mg/day days 16-30. Then 30 days off.
Research notes

Some protocols use 4-6 week cycles followed by 2-4 week breaks. Topical 1-3% solution typical for skin research. Reconstitute with bacteriostatic water, never freeze reconstituted. Loren Pickart's original research used 0.1-3mg subcutaneous.

FOR RESEARCH USE ONLY. Doses listed are compiled from published research literature, FDA-approved drug labels, and well-documented research community practice. Not medical advice.
/ standalone use

As a solo compound

Excellent standalone compound. Strong solo research for skin and collagen.

Common pairings
/ side effects

What to know

Topical: minimal. Systemic: occasional mild blue discoloration at injection site.

/ timeline

Realistic expectations

4-12 weeks for skin/hair effects

/ deep dives

Long-form research articles

FOR RESEARCH USE ONLY. GHK-Cu is intended for laboratory research and not for human consumption.