Semax 10mg · 5-vial pack — the vendor's own product photo

Best-case evidence

Independently tested — with one caveat

An independent lab record backs Chameleon Peptides' Semax at 99.2% — 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

Independent testLive dataNootropic peptide

Chameleon Peptides AGrade A

Semax 10mg · 5-vial pack

Name: Semax 10mg · 5-vial pack
Brand: Chameleon Peptides
Price: 323 USD
Availability: InStock

A synthetic heptapeptide derived from the ACTH(4-10) fragment with an added C-terminal Pro-Gly-Pro motif.

Observed price

$323$6.46/mg$325+53% vs median $/mg

Median $/mg

$4.23/mg

Range $/mg

$1.11/mg–$8.40/mg

This listing

#31 of 38

mid-market

Real / active mg

$6.51/mg

low $1.11/mgmedian $4.23/mghigh $8.40/mg

Compared by cost-per-mg against 38 sized listings of this compound. 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

No buyer reviews yet

Availability: In stock
Checked: 4 days ago

Buy at Chameleon Peptides

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

Chameleon Peptides

Unclaimed page

Lab tests

99.4%

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 Chameleon Peptides' Semax at 99.2% — 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

Every Semax listing, cheapest per mg first

Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 45 are here: the last 7 are listings whose vendor never published a strength we can read, so they have no per-mg figure to sort on.

#	Vendor	Size	Price	Per mg	Tested purity	Real $/active mg
1	Umbrella Labs	90mg total90 Milligrams Liquid Spray each	$100	$1.11/mg · too cheap?	—	$1.12/mgbest value	View
2	Nootropic Source	30mg total	$35	$1.17/mg · too cheap?	—	$1.17/mg	View
3	Nootropic Source	60mg total600mcg+ per spray (10mL bottle @ 6mg per mL) each	$70	$1.17/mg · too cheap?	—	$1.18/mg	View
4	Nootropic Source	20mg total200mcg+ per spray (10mL bottle @ 2mg per mL) each	$30	$1.50/mg · too cheap?	—	$1.51/mg	View
5	Peptide Pros	30mg total	$58	$1.94/mg	—	$1.96/mg	View
6	Nootropic Source	30mg total300mcg+ per spray (10mL bottle @ 3mg per mL) each	$60	$2.00/mg	—	$2.01/mg	View
7	Biotech Peptides	25mg total	$53	$2.12/mg	—	$2.14/mg	View
8	Umbrella Labs	30mg total	$70	$2.33/mg	—	$2.35/mg	View
9	Umbrella Labs	30mg total30 Milligrams Liquid Spray each	$70	$2.33/mg	—	$2.35/mg	View
10	Core Peptides	25mg total	$60	$2.40/mg	—	$2.42/mg	View
11	Swiss ChemsUnavailable	300mg totalKIT (10 vials) each	$740	$2.46/mg	—	$2.48/mg	View
12	Swiss Chems	30mg total	$74	$2.47/mg	—	$2.48/mg	View
13	Ion PeptideUnavailable	30mg total	$99	$3.30/mg	—	$3.32/mg	View
14	Behemoth Labz	30mg total	$100	$3.34/mg	—	$3.37/mg	View
15	Behemoth LabzUnavailable	60mg total	$201	$3.34/mg	—	$3.37/mg	View
16	PurerawzUnavailable	30mg total	$101	$3.36/mg	—	$3.39/mg	View
17	Felix Chemical Supply	10mg total	$35	$3.50/mg	—	$3.53/mg	View
18	Bluum Peptides	10mg total	$39	$3.90/mg	—	$3.93/mg	View
19	Modern Aminos	10mg total	$42	$4.20/mg	—	$4.23/mg	View
20	Ascend Bio LabsUnavailable	30mg total3 Vials / 10MG each	$128	$4.27/mg	99.1%	$4.31/mg	View
21	Ez Peptides	10mg total	$44	$4.40/mg	100.0%	$4.40/mg	View
22	Ascend Bio LabsUnavailable	20mg total2 Vials / 10MG each	$90	$4.50/mg	99.1%	$4.54/mg	View
23	Ion PeptideUnavailable	10mg total	$49	$4.90/mg	—	$4.94/mg	View
24	Umbrella Labs	10mg total10 Milligrams Peptide Vial each	$50	$5.00/mg	—	$5.04/mg	View
25	Ascension PeptidesUnavailable	10mg total	$50	$5.00/mg	—	$5.04/mg	View
26	Ascend Bio LabsUnavailable	10mg total	$53	$5.30/mg	99.1%	$5.35/mg	View
27	Simple PeptideUnavailable	10mg total	$55	$5.50/mg	—	$5.54/mg	View
28	Bluum Peptides	5mg total	$29	$5.80/mg	—	$5.84/mg	View
29	Chameleon PeptidesUnavailable	100mg total10mg · 10-vial kit each	$581	$5.81/mg	99.2%	$5.86/mg	View
30	Chameleon Peptides	50mg total5mg · 10-vial kit each	$308	$6.16/mg	99.2%	$6.21/mg	View
31	Chameleon Peptides	50mg total10mg · 5-vial pack each	$323	$6.46/mg	99.2%	$6.51/mg	View
32	Chameleon Peptides	10mg total	$68	$6.84/mg	99.2%	$6.89/mg	View
33	Behemoth LabzUnavailable	10mg total	$69	$6.85/mg	—	$6.90/mg	View
34	Behemoth Labz	10mg total	$69	$6.85/mg	—	$6.90/mg	View
35	PurerawzUnavailable	10mg total	$69	$6.88/mg	—	$6.93/mg	View
36	Chameleon Peptides	25mg total5mg · 5-vial pack each	$187	$7.48/mg	99.2%	$7.54/mg	View
37	Sports Technology Labs	10mg total	$80	$8.00/mg	—	$8.06/mg	View
38	Cernum Biosciences	10mg total	$84	$8.40/mg	—	$8.46/mg	View
Listed, but not rankable — no published strength to price per mg
—	Eternal Peptides	1 vial	$19	no size published	—	—	View
—	Nootropic Source	1 vial	$25	no size published	—	—	View
—	PurerawzUnavailable	1 vial	$35	no size published	—	—	View
—	Chameleon Peptides	1 vial	$40	no size published	99.2%	—	View
—	Cernum BiosciencesUnavailable	1 vial	$44	no size published	—	—	View
—	Ascend Bio LabsUnavailable	1 Bottle	$65	no size published	99.1%	—	View
—	Ascend Bio LabsUnavailable	2 Bottles	$128	no size published	99.1%	—	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. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.

Understand this compound

What is Semax?

Widely studieda.k.a. Semax

A focus-and-recovery molecule from Russian research — a fragment of a stress hormone repurposed to boost the brain's own growth factors. Prescribed in Russia after strokes; often paired with Selank.

Cognitive & mood

⚠

Good to know: Regulatory approval and most clinical data are confined to Russia and published largely in Russian-language journals, limiting independent verification by Western standards.

How does Semax work?

The science

A synthetic ACTH(4-10) fragment analog that upregulates BDNF/NGF expression via CREB pathway activation and modulates dopaminergic and serotonergic signaling.

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

What is Semax researched for?

Studied for cognitive enhancement, ischemic stroke recovery, and general neuroprotection.

Cognitive & moodStudied in memory, focus, mood, and neuroprotection research.

How far has the research gone?

Widely studied — approved as a prescription drug in Russia/CIS for stroke and age-related cognitive decline since the early 2000s, but never evaluated in large randomized Western trials.

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 Semax commonly stacked with?

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

Selank

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 is a separate question with its own answer — one green row never vouches for the rest.

Identity

Established

An independent lab record backs this vendor's testing for this compound.

Measured purity

Established

Independently measured 99.24%. Read from the certificate, not re-measured by VialGrade. Purity is not a grade.

Batch traceability

Unknown

No batch on this listing matches an independent record.

Sterility

Not tested

A purity certificate doesn't measure this — no such test on record.

Dose accuracy

Unknown

Not something VialGrade measures — no test on record.

These certificates are for Semax across every maker VialGrade tracks — not necessarily Chameleon Peptides’s own stock. This listing’s specific evidence is the matrix above.

Independent testing

Independent lab tests on record for Semax

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
EZ Peptides	EZP-SEMX1003072026-09	99.96%	11.28 mg; 11.46 mg; 11.48 mg	Janoshik Analytical	Verify
cocerpeptides.com	CS-nasa10-0509	99.91%	12.55/10mg ·	Janoshik Analytical Still listed	Verify
cocerpeptides.com	CS-nasa10-0408	99.56%	13.08 mg	Janoshik Analytical Still listed	Verify
https://www.htraresearch.cn	—	99.28%	5.68/5mg · full	Janoshik Analytical Still listed	Verify
Chameleon Peptides	—	99.24%	5.37 mg	Janoshik Analytical	View
Ascend Bio Labs	V260602-23-007	99.10%	—	Vanguard Laboratory	Verify
https://crystalpeptides.eu/	Se1010CP	99.02%	9.58 mg	Janoshik Analytical Still listed	Verify
www.innopeptide.com	—	See report	—	Janoshik Analytical	Verify
longevityprolabs.com	—	See report	—	Janoshik Analytical	Verify
Nootropic Source	—	99.65%	—	Vendor self-tested	View

Independently backed

Independent test on record — 99.24%

This listing doesn't advertise third-party testing, but we do hold an independent record for Chameleon Peptides's Semax, measured at 99.24%. Bonus evidence, not a guarantee of this specific batch.

Independent record. A third-party test references Chameleon Peptides for Semax at 99.24%.

Certificate analyzed 06 MAR 2026

Open the independent certificate

Cross-checks the vendor’s testing claim against independent lab records. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Never a statement that a product is safe, sterile, or correctly dosed. What “grade” actually means

Price trend

—

24 checks since Sep 5, 2026. Too short a span for a 30-day change. Latest $323.00 on Sep 28, 2026. Last checked 4 days ago.

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 law →

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

Same compound

See the full Semax market — all 45 vendors, price history & lab tests

Date	Observed
Sep 5, 2026	Not available
Sep 22, 2026	$324.90
Sep 28, 2026	$323.00