For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Healing & Recovery

GHK

Also known as: Glycyl-L-Histidyl-L-Lysine

GHK is the parent tripeptide Gly-His-Lys, originally isolated from human plasma by Loren Pickart (1973) as an activity that caused aged hepatocytes to synthesize proteins like younger tissue. It is DISTINCT from GHK-Cu, the 1:1 copper(II) complex tracked as a separate entry — but GHK binds copper readily in vivo, so in physiological environments the bare peptide rapidly associates with available Cu(II). Not FDA-approved for any indication; used in cosmetic and research contexts only.

Where to buy · live market data

Who's worth your money for GHK

Every current seller, ranked by independent evidence — Merit Score, latest COA purity, and live $/mg (size-normalized). Prices refresh daily. Rankings are never paid.

Top Merit pick

🇺🇸 Peptide Partners 99

Highest Merit Score (99) of 22 scored sellers

$1.50/mg

$150 · 100mg

no COAs yet
Buy

Best value

🇺🇸 Pepvida Labs 48

Lowest $/mg among scored sellers

$0.35/mg

$35.00 · 100mg

no COAs yet
Buy

Most tested

🇺🇸 Verified Peptides 86

2 independent COAs on file

$0.50/mg

$49.99 · 100mg

2 COAs
Buy

Average price

$4.45/mg

Sellers

53

45-day trend

+51.3%

34 of 53 sellers have a current price· 5 stale hidden· 7 unverified hidden

Prices observed from public storefronts (last 24h), normalized to $/mg. "Evidence" is Merit's 0–100 Merit Score, derived only from observable verification evidence (methodology on /about); "Purity" is the latest independent COA. Some buy links are affiliate links — Merit may earn a commission at no extra cost to you, and where a vendor offers one, the code shown gets you a discount at their checkout. Affiliate status never affects price data, ranking, or the Merit Score (full policy on /disclosure). Research use only.

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Compound reference

About GHK

CAS

49557-75-7

Molecular formula

C14H24N6O4

Sequence

GHK

Typical dose range

1-2 mg/day subcutaneous injection (research protocols)

Half-life

~30-60 minutes

Independent evidence

COAs for GHK

29 third-party tests across 9 vendors. Each card links to the full report.

All 29 COAs for GHK →
Measured purity 99.0%–100.0% across 21 COAs
Measured purity over time
✓ Vendor-published
99.63 %
Jul 2026
ILS Laboratories

For

GHK-Cu / KPV

by Ion Peptide· batch GHKPV60-06172026

COA on file
✓ Vendor-published
99.86 %
Jun 2026
Freedom Diagnostics Moderate

For

GHK-Cu/KPV

by Ion Peptide· batch GK60-06242026

COA on file
✓ Vendor-published
99.80 %
Jun 2026
ILS Laboratories

For

GHK-Cu / KPV

by Ion Peptide· batch GHK60-06092026

COA on file
✓ Vendor-published
99.74 %
May 2026
Kovera Labs

For

GHK-Cu/KPV

by Ion Peptide· batch GHK60-05052026

COA on file
✓ Vendor-published
99.97 %
Apr 2026
MZ Biolabs Moderate

For

GHK Copper

by Sports Technology Labs· batch 2026-04-13

COA on file
✓ Vendor-published
99.87 %
Apr 2026
Kovera Labs

For

GHK-Cu/KPV

by Ion Peptide· batch GHK60-04172026

COA on file
✓ Vendor-published
99.93 %
Apr 2026
Kovera Labs

For

GHK-Cu/KPV

by Ion Peptide· batch GHKPV-04042026

COA on file
✓ Vendor-published
99.88 %
Mar 2026
Freedom Diagnostics Moderate

For

GHK-Cu/BPC-157/Thymosin Beta-4

by Ion Peptide· batch GLOW-03162026

COA on file
✓ Vendor-published
99.35 %
Mar 2026
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Ion Peptide· batch KLOW-03162026

COA on file
✓ Vendor-published
99.00 %
Mar 2026
Analytical Formulations, Inc.

For

GHK-Cu + HLA Sheet Mask 25ml

by Ion Peptide· batch N/A

COA on file
Aggregated · 3rd-party listing
99.86 %
Feb 2026
Janoshik Analytical Limited

For

GHK

by Optima Supply· batch OP-GHK-2N6P

✓ Vendor-published
99.86 %
Feb 2026
Janoshik Analytical Limited

For

GHK

by optimasupply.is· batch OP-GHK-2N6P

COA on file
✓ Vendor-published
99.87 %
Jan 2026
Freedom Diagnostics Moderate

For

GHK-Cu/KPV

by Ion Peptide· batch GKPV60-010826

COA on file
✓ Vendor-published
99.71 %
Jan 2026
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Sunrise Bioresearch· batch KLODEC25-02

COA on file
✓ Vendor-published
99.53 %
Dec 2025
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Ion Peptide· batch KW80-12192025

COA on file
✓ Vendor-published
99.49 %
Dec 2025
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Ion Peptide· batch KLOW-112526

COA on file
✓ Vendor-published
99.66 %
Nov 2025
Freedom Diagnostics Moderate

For

GHK-Cu/BPC-157/Thymosin Beta-4

by Ion Peptide· batch GW-1125

COA on file
✓ Vendor-published
99.73 %
Nov 2025
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Ion Peptide· batch KW80-1125

COA on file
✓ Vendor-published
99.60 %
Oct 2025
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Ion Peptide· batch KW8-1025

COA on file
✓ Vendor-published
99.79 %
Sep 2025
Freedom Diagnostics Moderate

For

GHK-Cu/KPV/BPC-157/Thymosin Beta-4

by Ion Peptide· batch NA

COA on file
✓ Vendor-published
99.82 %
Aug 2025
Chromate Moderate

For

GHK-Cu + BPC-157 + TB-500 (TB4)

by Mile High Compounds· batch GLW-070-MH-02

COA on file
Aggregated · 3rd-party listing
—
Jun 2026

Purity not on file

Janoshik Analytical Limited

For

GHK

by Verified Peptides· batch GHK052614100N

✓ Vendor-published
—
May 2026

Purity not on file

Kovera Labs

For

GHK-Cu, AHK-Cu

by Ion Peptide· batch KVR-2026-F78301

COA on file
✓ Vendor-published
—
Mar 2026

Purity not on file

Analytical Formulations, Inc.

For

GHK-Cu Copper Peptide Conditioner

by Ion Peptide· batch 2026-02-05

COA on file
Research depth

18 citations indexed for GHK

All research on GHK →

rct · Ongoing

Two-Part Study of the Effects of the X39 Patch on Circulating GHK and GHK-Cu Levels in Healthy Adults

The goal of this clinical trial is to investigate GHK and GHK-Cu blood levels pre- and post-intervention in healthy adults, and to investigate the efficacy of X39 patch on GHK and GHK-Cu blood levels in healthy adults compared to a placebo.

Study · 2026

Characterization of copper tripeptide-loaded lipid carriers and their stability in complex cosmetic matrices

GHK-Cu is a tripeptide-copper complex composed of glycine-L-histidine-L-lysine coordinated with Cu²⁺ ions. Owing to its regenerative and antiaging properties, it is widely incorporated as an active ingredient in cosmetic formulations.

review · 2026

GHK-Cu as a Bioactive Metallopeptide and Drug-Delivery Cargo: Coordination Chemistry, Formulation Science, Therapeutic Evidence, and a Translational Roadmap

Background/Objectives : Glycyl-L-histidyl-L-lysine (GHK) and its copper(II) complex GHK-Cu have been studied for matrix remodeling, inflammation, redox regulation, angiogenesis, and tissue repair, yet the literature frequently treats GHK-Cu as a single active ingredient despite formulation-dependent variation in coordi…

Study · 2026

Augmented Skin Beneficial Effects of Thermus Thermophilus and Bacillus Subtilis Mixed-Culture Ferment Extract by Tripeptide GHK-Cu

Background Skin aging is a complex process driven by multiplex factors, including chronic inflammation and UV exposure. It has become common practice for cosmetic formulations to counteract skin aging by targeting different pathways simultaneously with a pool of active ingredients.

Study · 2026

The Regenerative Potential of GHK-Cu in Aesthetic Medicine

The age-related decline in tissue regenerative capacity drives demand for interventions restoring physiological repair mechanisms.

Study · 2026

A Prospective, Active‐Controlled Split‐Face Clinical Trial Evaluating the Incremental Aesthetic Benefits of a Glutathione‐Containing Booster in a GHK‐Conjugated Spicule Regimen