Live data — every record is aggregated from real public sources. VialGrade never sells; it links out to the vendor.
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Thymic peptide
Live data

Thymosin Alpha-1

Immune & thymic

A synthetic 28-amino-acid peptide identical to a naturally occurring thymic peptide.

ThymalfasinZadaxinTa1

Observed median price

$66

0%

15

Active listings

5 · 99.6%

Independent lab tests

$41–$696

Observed price range

4

Known aliases

Read from the certificate, not re-measured by VialGrade.

Understand this compound

What is Thymosin Alpha-1?

Widely studieda.k.a. Zadaxin, Tα1

A thymic peptide (Zadaxin) studied in immune-modulation and antiviral research.

Immune & thymic

Good to know: Despite a large international trial base, it lacks current FDA approval in the US, and the FDA has flagged immunogenicity and quality concerns for compounded versions.

How does Thymosin Alpha-1 work?

A 28-amino-acid thymic peptide that activates Toll-like receptor 9 (TLR9) signaling on dendritic cells, promoting T-helper-1 polarization and coordinated adaptive immune responses.

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

What is Thymosin Alpha-1 researched for?

Studied for chronic viral hepatitis (B and C), as an immune adjuvant in cancer, and for sepsis/immune modulation.

  • Immune & thymicStudied in immune-modulation and thymic-function research.
How far has the research gone?

Widely studied — evaluated in 30+ trials (roughly 11,000 patients) internationally and approved in 35+ countries (e.g., China, Italy) as Zadaxin for hepatitis B, but not currently FDA-approved in the US.

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

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.

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.

Compare by real cost

Cheapest Thymosin Alpha-1, 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.

#VendorSizePricePer mgTested purityReal $/active mg
1Ez Peptides10mg total$58$5.80/mg99.6%$5.82/mgbest valueView
2Chameleon Peptides100mg total10mg · 10-vial kit each$696$6.96/mg99.3%$7.01/mgView
3Modern Aminos10mg total$80$8.00/mg$8.03/mgView
4Chameleon Peptides10mg total$82$8.19/mg99.3%$8.24/mgView
5Simple Peptide10mg total$86$8.60/mg$8.63/mgView
6Chameleon Peptides50mg total5mg · 10-vial kit each$451$9.03/mg99.3%$9.09/mgView
7Umbrella Labs10mg total10 Milligrams each$120$12.0/mg$12.0/mgView
8Umbrella Labs5mg total5 Milligrams each$65$13.0/mg$13.0/mgView
9Bluum Peptides5mg total$69$13.8/mg$13.9/mgView
10Umbrella Labs2mg total$45$22.5/mg$22.6/mgView

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.

Current market

All Thymosin Alpha-1 listings

Thymalfasin 1 vialPureRawz
C-Grade C-
Immune & thymic

$66

Vendor catalog Compound: 5 COAsLive data

Availability

In stock

Last checked

3 hours ago

Thymosin Alpha-1 5mgBluum Peptides
B+Grade B+
Immune & thymic

$69

$13.8/mg

+57% vs median/mg

Testing unverified Compound: 5 COAsLive data

Availability

In stock

Last checked

3 hours ago

Thymosin Alpha-1 10MGModern Aminos
?Not rated yet
Immune & thymic

$80

$8.00/mg

-9% vs median/mg

Vendor catalog Compound: 5 COAsLive data

Availability

In stock

Last checked

2 hours ago

Independent testing

Thymosin Alpha-1 — independent lab tests

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.

99.8%

highest tested purity

CertificateManufacturerBatchPurityContent / doseLab
https://crystalpeptides.eu/TA0514CP99.76%5.55 mgJanoshik Analytical Still listed Verify
www.uwa-biotech.com99.68%5.64/5mg · fullJanoshik Analytical Still listed Verify
www.uwa-biotech.comWhite99.64%11.45/10mg · fullJanoshik Analytical Still listed Verify
EZ PeptidesEZP-TA11003152026-0399.63%11.46 mg; 11.26 mg; 11.37 mgJanoshik Analytical Verify
Certificate of analysisChameleon PeptidesB00299.35%5.70 mgJanoshik Analytical View

Tested batches

Batch test records for Thymosin Alpha-1

The full test history for one batch — who picked the sample, who tested it, and what came back. It describes the vials that were tested, never every vial they sold.

All batch records

Research notes aren’t product proof

Research summaries describe published literature and market data only. They do not establish the identity, quality, safety, or legal status of any listed physical product.