Independent testLive dataCopper peptide

GHK-Cu 100mg / 1 Vial

Name: GHK-Cu 100mg / 1 Vial
Brand: Ascend Bio Labs
SKU: V260602-23-002
Price: 55 USD
Availability: LimitedAvailability

A copper-binding tripeptide (glycyl-L-histidyl-L-lysine) complexed with copper(II) ions.

Observed price

$55$0.55/mg-25% vs median $/mg

Median $/mg

$0.73/mg

Range $/mg

$0.20/mg–$101.5/mg

This listing

#5 of 29

mid-market

Real / active mg

$0.55/mg

low $0.20/mgmedian $0.73/mghigh $101.5/mg

Compared by cost-per-mg against 29 vendor listings of this compound whose size we can read. Real / active mg divides cost-per-mg by measured purity. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Purity vs grade

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Buy at Ascend Bio Labs

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Some vendor links may earn VialGrade a commission. It never changes a grade, a price, or where a listing ranks.

Ascend Bio Labs

Unclaimed page

Lab tests

99.1%

Median purity

Listings

Real listing aggregated from the vendor's public page. Buying happens on their site, never on VialGrade — we take no payment and hold no stock. These are sold for laboratory research use only, not for human consumption; the seller sets their own terms and age limits at checkout.

Best-case evidence

Independently tested — with one caveat

An independent lab record backs Ascend Bio Labs' GHK-Cu at 99.8% — the exact evidence most listings lack.
A certificate covers one submitted batch, not every vial — confirm it matches the batch you receive.

How to verify this yourself

Check the seller's COA is for YOUR batch number, then paste it into Verify to confirm it's a real, unedited Janoshik record.

Open the Verify tool

Compare by real cost

Cheapest GHK-Cu, by price per mg

Vials come in different sizes, so the sticker price lies. This ranks every listing by what a milligram actually costs — with independent test purity where we have it.

#	Vendor	Size	Price	Per mg	Tested purity	Real $/active mg
1	Umbrella Labs	400mg total	$80	$0.20/mg · too cheap?	—	$0.20/mgbest value	View
2	Ascend Bio Labs	200mg total100mg / 2 Vials each	$99	$0.49/mg	99.8%	$0.50/mg	View
3	Chameleon Peptides	1000mg total100mg · 10-vial kit each	$520	$0.52/mg	99.9%	$0.52/mg	View
4	Ez Peptides	100mg total	$53	$0.53/mg	—	$0.53/mg	View
5	Simple Peptide	100mg total	$55	$0.55/mg	—	$0.55/mg	View
6	Ascend Bio Labs	100mg total	$55	$0.55/mg	99.8%	$0.55/mg	View
7	Bluum Peptides	100mg total	$59	$0.59/mg	—	$0.59/mg	View
8	Cernum Biosciences	100mg total	$60	$0.60/mg	—	$0.60/mg	View
9	Felix Chemical Supply	100mg total	$60	$0.60/mg	—	$0.60/mg	View
10	Chameleon Peptides	100mg total	$61	$0.61/mg	99.9%	$0.61/mg	View
11	Modern Aminos	100mg total	$64	$0.64/mg	—	$0.64/mg	View
12	Modern Aminos	100mg total	$64	$0.64/mg	—	$0.64/mg	View
13	Chameleon Peptides	500mg total50mg · 10-vial kit each	$337	$0.67/mg	99.9%	$0.67/mg	View
14	Ez Peptides	50mg total	$35	$0.70/mg	—	$0.70/mg	View
15	Ascend Bio Labs	150mg total50mg / 3 Vials each	$110	$0.73/mg	99.8%	$0.73/mg	View
16	Ascend Bio Labs	100mg total50mg / 2 Vials each	$77	$0.77/mg	99.8%	$0.77/mg	View
17	Ascend Bio Labs	50mg total	$43	$0.86/mg	99.8%	$0.86/mg	View
18	Bluum Peptides	50mg total	$45	$0.90/mg	—	$0.90/mg	View
19	Umbrella Labs	120mg total2MG each	$118	$0.98/mg	—	$0.99/mg	View
20	Peptide Pros	50mg total	$50	$0.99/mg	—	$0.99/mg	View
21	Felix Chemical Supply	50mg total	$55	$1.10/mg	—	$1.10/mg	View
22	Sports Technology Labs	50mg total	$57	$1.14/mg	100.0%	$1.14/mg	View
23	Swiss Chems	50mg total	$69	$1.38/mg	—	$1.38/mg	View
24	Swiss Chems	500mg total50mg KIT (10 vials) each	$690	$1.38/mg	—	$1.38/mg	View
25	Swiss Chems	100mg total10mg KIT (10 vials) each	$247	$2.47/mg	—	$2.48/mg	View
26	Purerawz	10mg total	$47	$4.68/mg	—	$4.69/mg	View
27	Umbrella Labs	5mg total	$50	$10.00/mg	—	$10.0/mg	View
28	Modern Aminos	2mg total	$109	$54.5/mg	—	$54.7/mg	View
29	Purerawz	2mg total	$203	$101.5/mg	—	$101.8/mg	View

Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg.

Understand this compound

What is GHK-Cu?

Widely studieda.k.a. Copper peptide, GHK-Copper, Copper tripeptide-1

A copper peptide famous in skincare and hair research for collagen and cosmetic contexts, also discussed for tissue recovery. The 'GLOW' in the popular recovery blend.

Skin & cosmeticRecovery & healingLongevity & anti-aging

⚠

Good to know: Most positive human data come from small, often industry-sponsored topical cosmetic trials rather than large independent trials, and copper at high local concentrations can be pro-oxidant rather than protective.

How does GHK-Cu work?

A naturally occurring copper-binding tripeptide (Gly-His-Lys) that delivers copper to enzymes regulating extracellular matrix remodeling, stimulating fibroblast production of collagen, elastin, and glycosaminoglycans.

Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.

What is GHK-Cu researched for?

Studied for skin rejuvenation, wound healing, and hair growth.

Skin & cosmeticStudied in cosmetic and skin research — collagen, elasticity, and appearance.
Recovery & healingStudied in tissue-repair research — tendon, ligament, muscle, and wound-healing models.
Longevity & anti-agingStudied in aging, cellular-senescence, and mitochondrial-function research.

How far has the research gone?

Widely studied — decades of preclinical work plus several small human skin trials showing increased collagen density versus vehicle or retinoic acid controls.

Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.

What is GHK-Cu commonly stacked with?

Compounds the research community frequently discusses alongside GHK-Cu. Not a protocol or a recommendation — a map of what to read about next.

BPC-157 TB-500

What should I check before buying?

Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
Vendor reputation. See how the vendor is talked about in the community before trusting a new name.

Research context only — VialGrade never gives dosing, medical, or human-use guidance.

The lab evidence

What we could verify

Each row answers a different question. Passing the identity test doesn’t mean it’s sterile or correctly dosed — we show each answer separately.

Identity — independent test

Established

An independent lab confirmed the exact cited batch for this vendor.

Measured purity (HPLC)

Established

Independently measured 99.80%. Read from the certificate, not re-measured by VialGrade. Purity is not a grade.

Batch traceability

Established

The exact batch cited on this listing resolves to an independent lab record.

Sterility & endotoxin

Not tested

A purity COA does not measure sterility or endotoxins — no such test is on record.

Dose / fill accuracy

Unknown

VialGrade does not independently measure vial fill or delivered dose.

These certificates are for GHK-Cu across every maker VialGrade tracks — not necessarily Ascend Bio Labs’s own stock. This listing’s specific evidence is the matrix above.

Independent testing

Independent lab tests on record for GHK-Cu

Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.

How does this data get here?

Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.

Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.

We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.

What a certificate does & doesn’t prove

Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.

Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.

100.0%

highest tested purity

Manufacturer	Batch	Purity	Content / dose	Lab
Sports Technology Labs	2026-04-13	99.97%	—	MZ Biolabs	View
Chameleon Peptides	B002A	99.92%	47.28 mg	Janoshik Analytical	View
PeptideGurus	10th June 2026	99.83%	96.11/100mg · full	Janoshik Analytical Still listed	Verify
Ascend Bio Labs	V260602-23-002	99.80%	—	Vanguard Laboratory	Verify
PeptideGurus	3rd June 2026	99.77%	50.6/50mg · full	Janoshik Analytical Still listed	Verify
GreyLabs.xyz	0582	99.73%	49.94 mg	Janoshik Analytical Still listed	Verify
https://crystalpeptides.eu/	CU1002026-02	99.68%	94.44 mg	Janoshik Analytical Still listed	Verify
http://www.sahepeptides.com/	—	99.67%	123.28/100mg ·	Janoshik Analytical Still listed	Verify
www.qhpeptides.com	4	99.60%	124.36/100mg ·	Janoshik Analytical Still listed	Verify
Shengtai Chemical Co., Ltd	2026	99.45%	44.74/50mg · underdosed	Janoshik Analytical Still listed	Verify
www.hkuppeptide.com	2026	99.44%	77.27/100mg · underdosed	Janoshik Analytical Still listed	Verify
www.taikangbio.com	2026	99.44%	77.27/100mg · underdosed	Janoshik Analytical Still listed	Verify
www.taishijie.com	2026	99.44%	77.27/100mg · underdosed	Janoshik Analytical Still listed	Verify
Unknown	—	99.42%	45.07/50mg · full	Janoshik Analytical Still listed	Verify
UnknownHeavy metals	—	See report	—	Janoshik Analytical Still listed	Verify
Eternal Peptides	EP-260529-GH50	99.33%	—	Unverified lab · Kovera Labs	Verify

Independently confirmedvendor cites Janoshik

This exact batch was independently tested at 99.80%

The batch this listing cites matches an independent record for Ascend Bio Labs's GHK-Cu in the lab's own feed. That's the same batch, tested by a third party — the best documentary evidence available. It still isn't a promise about the vial you'll receive.

Certificate attribution. Batch resolves to an independent record for Ascend Bio Labs's GHK-Cu.
Measured purity. Independently measured at 99.80%.

Certificate analyzed 2026-06-12

Open the independent certificate

Cross-checks the vendor’s testing claim against independent lab records. Purity is read from the lab's certificate as issued — VialGrade doesn't re-run the assay or sample the vial. It reflects one lab's result for one submitted batch, not every vial — and it says nothing about how the peptide was MADE. A high purity number can come from an uncontrolled facility; "pharmaceutical grade" is a marketing phrase unless a GMP certificate backs it. Never a statement that a product is safe, sterile, or correctly dosed. What “grade” actually means

Report record

Lab: Janoshik
Report date
Batch: V260602-23-002
Who picked the sample: Public vendor listing
Lab confirmed it’s theirs: Yes

US legal status

Research-use-only — not FDA-approved

Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.

Read the full US legal overview →

General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.

Same compound

See the full GHK-Cu market — all 37 vendors, price history & lab tests