Why does GHK-Cu require copper to be active?

The copper ion in GHK-Cu is essential for its conformation and receptor binding. Free GHK (without copper) has reduced biological activity. The copper is tightly bound and is not released in free ionic form under physiological conditions, making it safe compared to free copper supplementation which can generate hydroxyl radicals.

How does GHK-Cu affect gene expression beyond collagen?

Microarray studies by Pickart and Margolina identified GHK-Cu modulation of over 4,000 human genes. Key regulated pathways include tissue remodelling (matrix metalloproteinases and their inhibitors), inflammation (TNF-alpha and IL-6 suppression), neurological repair (NGF and BDNF upregulation), and anti-cancer protection (downregulation of cancer-progression genes including ALK and EGFR).

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GHK-Cu

Name: GHK-Cu
Price: 30 USD
Availability: InStock

Naturally occurring copper-binding tripeptide (Gly-His-Lys-Cu2+) present in human plasma. Plasma levels decline 60% between ages 20-60. Studied for collagen

Anti-AgingRecoverySkin

● In Stock

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Quantity (vials)

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1+ vials

−5%

3+ vials

−10%

5+ vials

−20%

10+ vials

Total Price

$30

For research & laboratory use only. Not for human consumption.

Administration Route

Subcutaneous injection

Collagen Synthesis +70%

Upregulates COL1A1 and COL3A1 in fibroblast studies

Wound Healing

Attracts macrophages and fibroblasts to wound sites

Neuroprotection

Promotes BDNF expression and protects against neurodegeneration

Effect Profile

Based on primary research mechanisms

Cellular Longevity

Collagen Synthesis

Oxidative Protection

Energy Restoration

Effect Timeline

Start

Skin texture improvements begin; wound healing accelerated

Week 4

Collagen density visibly improved; fine lines reducing

Week 8

Significant skin thickness improvement; pigmentation evening

Week 12

Deep wrinkle reduction; skin elasticity restored

Start — Week 2

Skin texture improvements begin; wound healing accelerated

Week 4

Collagen density visibly improved; fine lines reducing

Week 8

Significant skin thickness improvement; pigmentation evening

Week 12

Deep wrinkle reduction; skin elasticity restored

Mechanism of Action

GHK-Cu forms a stable complex with copper(II) ions, which is essential for its biological activity. It stimulates collagen types I, III, and VI synthesis in fibroblasts and promotes production of decorin, a proteoglycan that organises collagen fibrils. It activates VEGF and FGF secretion to promote angiogenesis. It also acts as a potent gene expression modulator, with microarray studies showing it upregulates 31 genes involved in tissue repair and downregulates 8 genes associated with inflammation and cancer progression.