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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.

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

🇺🇸 Hydro Research Peptides 97

Highest Merit Score (97) of 21 scored sellers

$0.01/mg

$0.55 · 100mg

no COAs yet
Buy code MERIT · 15% off

Best value

🇺🇸 Verified Peptides 87

Lowest $/mg among scored sellers

$0.30/mg

$30.00 · 100mg

2 COAs
Buy

Most tested

🇺🇸 Reta One Labs 95

1 independent COA on file

$0.64/mg

$45.00 · 70mg

1 COA
Buy affiliate

Average price

$3.71/mg

Sellers

52

45-day trend

+9.3%

35 of 52 sellers have a current price· 5 stale hidden· 9 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

17 citations indexed for GHK

All research on GHK →

rct · 2027

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

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

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

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.

Study · 2026

A <i>Torilis japonica</i> Extract-GHK-Cu Complex Attenuates Th2 Cytokines and Promotes Keratinocyte Recovery: A Potential Antioxidant Strategy for Atopic Dermatitis

Atopic dermatitis (AD) is a chronic skin disorder driven by Th2 immune dysregulation, persistent inflammation, and epidermal barrier defects. Oxidative stress acts as a major upstream factor in this process, amplifying inflammatory signals and worsening disease severity.

Study · 2026

Copper peptide activated cascade catalysis for glucose regulation and hypoxia reversing in infected diabetic wound healing

Starvation therapy has emerged as a promising strategy in diabetic wounds treating by regulating glucose level to deplete microbial nutrients without inducing antimicrobial resistance. However, this process consumes large amounts of oxygen, exacerbating wound hypoxia and compromising therapeutic efficacy.