GHK-Cu

Also known as: Copper peptide, Glycyl-L-histidyl-L-lysine copper complex

Evidence Tier B-Cmed-high riskbeginnernot approved

Copper peptide complex with substantial topical/cosmetic literature for skin and hair repair.

Overview

GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) influences extracellular matrix remodeling (collagen/elastin/GAG synthesis) and modulates MMP/TIMP balance in fibroblast studies. Widely discussed in skin repair contexts with substantial topical/cosmetic literature. Injection 'peptide protocols' are not the evidence base. Generally better tolerated topically than systemic hormone peptides. Topical formats are usually easier to compare and evaluate than more aggressive research-use presentations.

Research Details

Mechanism of Action

Influences extracellular matrix remodeling (collagen/elastin/GAG synthesis); modulates MMP/TIMP balance.

Study Dose Range

Substantial topical/cosmetic literature. Injection protocols are not the evidence base.

Administration Routes

topical

Onset / Timeline

Skin remodeling: weeks to months (collagen turnover cycles).

Expected Effects

Skin repair, collagen stimulation, wound healing support (topical evidence).

Adverse Effects

Generally better tolerated topically than systemic peptides.

Contraindications

Copper sensitivity.

Interaction Notes

Unknown clinically; avoid stacking claims.

Related Goals

Tissue Repair & RecoveryLongevity & Anti-AgingSkin & Hair

Available From

Amino Club

consumer RUO · COA: product page COA viewer

50 mg topical or serum-style product (verify current variants) · variant-dependent on product page

Consumer RUO; review product details carefully

A dedicated GHK-Cu page is available, but it is still important to check whether the product is being presented as topical, injectable, or both.

USVisit Vendor

QC: third-party purity testing; product-level COA on page

Shipping: US/ROW (verify current policy) · affiliate: public program

Read this before you compare products

How to Read a COA

A COA can be useful, but only if you know which fields matter and where vendor screenshots stop being persuasive.

Read guide

Peptide Lab Testing Explained

A practical breakdown of the testing methods people see on product pages and what those methods can and cannot prove.

Read guide

How to Compare Peptide Vendors

A practical vendor comparison guide that helps you look past branding and focus on the details that actually matter.

Read guide

Frequently Compared

BPC-157

Preclinical cytoprotective peptide studied for tissue repair and GI protection in animal models.

Tier C

Thymosin Beta-4

Actin-sequestering peptide with clinical data in ophthalmic wound healing and preclinical tissue repair.

Tier B-C

TB-500

Marketed thymosin beta-4 fragment (LKKTETQ actin-binding motif) studied for soft-tissue repair in preclinical models.

Tier C

Melanotan I

FDA-approved MC1R agonist (SCENESSE implant) for erythropoietic protoporphyria. Prescription only.

Tier A

Information provided for educational and research reference only. Not medical advice. Not for diagnosing, treating, curing, or preventing disease. Products referenced are labeled Research Use Only (RUO) by vendors; not for human or veterinary use.