Captide Labs

GHK-Cu Capsules | 2mg | 60 Capsules

$79.99

Research-grade GHK-Cu (Copper Tripeptide-1) capsules. 2mg per capsule, 60 capsules per bottle. HPLC tested, >98% purity. CAS# 300801-03-0. For research use only.

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$79.99/ea
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2 BOTTLES
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3 BOTTLES
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$67.99/ea

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Description

Copper Tripeptide-1 · Research Grade  ·  Skin & Recovery Collection →

GHK-Cu (Copper Tripeptide-1) Research Capsules

Captide Labs GHK-Cu capsules supply researchers with a precisely dosed, encapsulated format of Copper Tripeptide-1 (glycyl-L-histidyl-L-lysine copper complex). Each capsule delivers 2mg of GHK-Cu at greater than 98% purity, independently verified by HPLC-MS analysis and documented with a full Certificate of Analysis.

GHK-Cu is a naturally occurring copper peptide with molecular formula C₁₄H₂₄N₆O₄ and CAS number 300801-03-0. First isolated from human plasma in the early 1970s, it has since been the subject of extensive peer-reviewed research examining its biochemical interactions at the cellular level — particularly its role in modulating gene expression, extracellular matrix remodeling, and antioxidant activity.

Research Specifications
Compound
GHK-Cu (Copper Tripeptide-1)
CAS Number
300801-03-0
Molecular Formula
C₁₄H₂₄N₆O₄
Purity
>98% (HPLC-MS Verified)
Format
Encapsulated Powder
Amount Per Capsule
2mg
Capsules Per Bottle
60
Testing Standard
ISO 17025 Accredited Lab
Other Ingredients
Gelatin (Vegan), Rice Flour, Silicon Dioxide

What is GHK-Cu?

GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is a tripeptide naturally present in human plasma, saliva, and urine. Its plasma concentration declines significantly with age — from approximately 200ng/mL at age 20 to around 80ng/mL by age 60 — a decline that has drawn research interest in the compound’s potential roles in biological regulation.

The copper ion is integral to GHK-Cu’s activity. The tripeptide forms a tight complex with Cu²⁺, and this complex has been shown in laboratory settings to interact with a broad range of biological systems. Researchers have investigated GHK-Cu across disciplines including dermatology, neuroscience, oncology, and wound-healing biology.

Research Overview

Areas of active investigation

Extracellular Matrix & Collagen Remodeling
GHK-Cu has been studied for its role in upregulating collagen, elastin, and glycosaminoglycan synthesis in fibroblast cultures. Multiple in-vitro studies have investigated its influence on matrix metalloproteinase activity and tissue remodeling pathways.
Wound Healing & Tissue Repair
Preclinical studies have examined GHK-Cu’s effects on wound contraction, angiogenesis, and keratinocyte migration. It has been identified as a chemoattractant for mast cells and macrophages in animal models, suggesting roles in early-phase tissue repair signaling.
Antioxidant & Anti-inflammatory Activity
Research has explored GHK-Cu’s capacity to suppress pro-inflammatory cytokines including TNF-α and IL-6 in cell culture models. Studies have also investigated its ability to reduce oxidative stress markers and upregulate superoxide dismutase expression.
Gene Expression Modulation
Genome-wide studies have identified GHK-Cu as a broad modulator of gene expression, with observed effects on over 4,000 human genes in vitro. Researchers have noted apparent resetting of gene expression toward patterns associated with younger tissue states.
Neurological Research
GHK-Cu has been investigated in neuronal cell models for its potential neuroprotective properties. Studies have examined its interaction with nerve growth factor pathways and its effects on oxidative stress in neuronal cultures.

GHK-Cu in a blend
Also available in GLOW Blend
GHK-Cu is a key active in our GLOW Blend Capsules — a synergistic stack combining GHK-Cu with TB-500 and BPC-157, formulated for researchers studying multi-compound skin and tissue repair pathways.

Third-Party Certificate of Analysis
Every batch of GHK-Cu capsules is independently tested by an ISO 17025-accredited laboratory. View the full COA including identity confirmation, purity assay, heavy metals, and microbial results.

Frequently Asked Questions

What is GHK-Cu used for in research?
+
GHK-Cu (Copper Tripeptide-1) is investigated in laboratory research for its effects on collagen synthesis, wound healing signaling, antioxidant activity, and gene expression modulation. It is used in cell culture and preclinical models across dermatology, neuroscience, and regenerative biology research.
What purity is Captide Labs GHK-Cu?
+
Each batch of GHK-Cu capsules meets a minimum purity of greater than 98% as verified by independent HPLC-MS analysis. A full Certificate of Analysis is available on our Lab Reports page for every production batch.
Why are GHK-Cu capsules used instead of powder?
+
The capsule format provides precise, pre-measured 2mg doses that eliminate the need for a milligram-accurate scale during laboratory handling. Capsules also offer improved stability and protection from moisture and oxidation during storage and transport. The capsule itself serves only as a container — this is a research material, not a supplement.
What is the CAS number for GHK-Cu?
+
The CAS number for GHK-Cu (Copper Tripeptide-1, glycyl-L-histidyl-L-lysine copper complex) is 300801-03-0. The molecular formula is C₁₄H₂₄N₆O₄ and the molecular weight is approximately 340.38 g/mol.
How should GHK-Cu research material be stored?
+
For short-term storage (weeks), keep in a cool, dry place away from direct light at 4°C. For long-term stability (months to years), store at -20°C or below in an airtight container. Avoid repeated freeze-thaw cycles. Keep away from moisture and oxidizing agents.

For research use only. Not for human consumption, veterinary use, or food/agricultural applications. Not evaluated or approved by the FDA. Not intended to diagnose, treat, cure, or prevent any condition. All purchases are made with the understanding that this compound is strictly for in-vitro research and laboratory use.

FDA Disclosure: The statements on this website and the products sold herein have not been evaluated by the U.S. Food and Drug Administration (FDA). These products are not intended to diagnose, treat, cure, or prevent any disease. Products sold are for Research Use Only and are not for human or animal use.

Intended Purpose: Products sold on this site are intended solely for basic laboratory research, pharmaceutical research, or the development of new tests. They are not intended for diagnostic, therapeutic, or clinical use.

Handling and Storage Tips:

  • Keep peptides cold and away from light once received.
  • For short-term use (days to weeks), refrigeration at 4°C (39°F) is acceptable.
  • Lyophilized peptides are typically stable at room temperature for several weeks, making it suitable for moderate-term storage.
  • For long-term storage (months to years), it’s best to freeze peptides at -80°C (-112°F). Freezing optimally preserves peptide stability for extended periods.

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"RUO" is an abbreviation for Research Use Only. It is a designation used primarily by the FDA (Food and Drug Administration) for products, often in vitro diagnostic (IVD) components like reagents or instruments, that are in the laboratory research phase of development and are not intended for clinical diagnostic use.

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Captide Labs GHK-Cu capsules — 2mg Copper Tripeptide-1 skin recovery research peptide
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