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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.

Real-time market data

Pricing for GHK

Live vendor pricing, normalized to $/mg so sizes compare fairly — fused with each seller's Merit trust score and latest independent COA purity. Prices refresh daily.

Average price

$3.90/mg

range $0.36–$77.50/mg

Sellers

44

from $26.00

45-day trend

+45.4%

vs 45-day avg $/mg

34 of 44 sellers have a current price· 18 stale listings hidden (not seen in 7 days)

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.

Independent evidence

COAs for GHK

22 third-party tests across 6 vendors. Each card links to the full report.

All 22 COAs for GHK →
Measured purity 99.0%–100.0% across 16 COAs
Measured purity over time
✓ 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
99.87 %
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
✓ 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
✓ Vendor-published
—
Mar 2026

Purity not on file

Analytical Formulations, Inc.

For

GHK-Cu Tallow Honey Balm

by Ion Peptide· batch 2026/02/02

COA on file
✓ Vendor-published
—
Dec 2025

Purity not on file

Vanguard Laboratory Strong

For

GHK-Cu Serum

by Reta One Labs

COA on file
✓ Vendor-published
—
Mar 2025

Purity not on file

Lab unknown

For

GHK-Cu (Copper Peptide Serum or Friar / Oligo)

by EZ Peptides· batch SP-900175/3526-02

COA on file
✓ Vendor-published
—
Mar 2021

Purity not on file

Lab unknown

For

599-4 blue iyo

by Verified Peptides· batch 210226

COA on file
✓ Vendor-published
—

Purity not on file

Lab unknown

For

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

by Ruo Bio

COA on file
Research depth

16 citations indexed for GHK

All research on GHK →

Study · 2026

Redox-Responsive GHK-Conjugated Sponge Spicules for Sustained Dermal Delivery and Enhanced Collagen Synthesis

Sponge spicules have emerged as promising biomaterial scaffolds due to their biocompatibility and unique structural properties; however, achieving stable and bioactive functionalization remains a key challenge.

animal · 2026

The GHK-Cu delays aging in Caenorhabditis elegans via coordinated regulation of mitochondrial function and activation of DAF-16/SKN-1 pathways

Aging is a complex biological process characterized by progressive functional decline across tissues and increased susceptibility to age-related diseases, with oxidative stress being a key contributing factor.

animal · 2026

Middle-aged mice treated with GHK-Cu peptide administered intraperitoneally or intranasally show behavioral rescue but divergent hippocampal aging programs

Study · 2026

The Laccase-like Property of GHK-Cu and Its Applications in Colorimetric Sensing of Phenolic Compounds

Laccase plays an important role in the detection and degradation of phenolic compounds, but it is limited by its cost and stability. In this study, the laccase-like property of copper peptide (GHK-Cu) has been revealed.

animal · 2026

Glycyl-L-histidyl-L-lysine-Cu2<sup>+</sup> (GHK-Cu) Attenuates CuSO<sub>4</sub> or LPS induced-inflammation in Zebrafish larvae model

Inflammation serves as a basic defense mechanism against both internal and external threats, while the unresolved or excessive inflammation can lead to irreversible tissue damage.

Study · 2026

Evaluating neurochemical changes and associated locomotor activity in a double hit schizophrenia model