Ghk-cu Purity: 4253 Lab Tests Across 1271 Identified Manufacturers

94 studies on Ghk-cu curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

Bottom line: TitrateLab currently tracks 4,253 published third-party lab tests of Ghk-cu across 1,271 identified manufacturers. Among reports with a positive numeric purity result, the average is 99.72%. Within this published corpus, 3 positive purity results were below 90%, and 363 reports showed measured quantity more than 10% below the label claim. These are batch-level observations, not guarantees of product identity, safety, or vendor quality.

Ghk-cu average prices

As of 2026-09-03, vendor-blind retail asking-price averages for the US delivery market, calculated from the same in-stock exact-strength cells as the Peptide Price Index. Shipping is excluded.

Strength Average / vial Observed range / vial Average / mg Coverage
2 g $20.00 $20.00–$20.00 $0.01 1 source · 1 offer
50 mg $6.50 $5.00–$8.50 $0.13 6 sources · 6 offers
100 mg $8.83 $6.00–$10.50 $0.09 6 sources · 6 offers

Asking prices are not manufacturing cost and do not establish product equivalence, quality, safety, or legality. The refresh date is the catalog build date; individual source observation dates are not available in this snapshot. View full price methodology →

We tested 4253 Ghk-cu batches across 1271 identified manufacturers

Independent certificate-of-analysis evidence from third-party labs — the data behind the studies. Updated as new COAs are verified. Read the full grey-market analysis →

Within that total, 910 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.

99.72%
Avg purity
4253
Batches tested
1271
Identified manufacturers
3
Failed <90% purity
363
Underdosed >10%

Top 3 vendor evidence profiles for Ghk-cu

Eligible vendors have at least 2 deduplicated tests and 2 classifiable identity observations. Rank uses the 95% lower confidence bound on clean identity results; mean positive purity and test count break ties. Missing measurements are not passes. Exact-zero/not-detected and explicit wrong-compound markers count once per adverse certificate. This describes tested batches, not every product or shipment, and is not an endorsement.

RankManufacturerTestsAvg positive purityIdentity adverse results
#1 62 99.79% 0 of 52 (0.0%) 0 0% / not detected · 0 wrong compound · 10 unclassified Reveal with Pro →
#2 35 99.81% 0 of 35 (0.0%) 0 0% / not detected · 0 wrong compound Reveal with Pro →
#3 39 99.73% 0 of 35 (0.0%) 0 0% / not detected · 0 wrong compound · 4 unclassified Reveal with Pro →

Manufacturer identities are included with Pro. Batch counts and lab measurements remain visible.

Recent certificates: #101098 (99.79%) · #101303 (99.68%) · #100417 (99.56%) · #100462 (99.9%) · #100814 (99.96%) · #100894 (99.97%)

Ghk-cu studies and clinical research

Research tools

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Reconstitution calculator Bac water, concentration & insulin-unit math Verify a COA Look up a report number against our corpus