Lexar product

Thymosin Alpha-1

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$79.00
$103.00
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Lab-Tested Purity

Every batch is third-party tested before leaving our facility.

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This batch of Thymosin Alpha-1 Peptide has been third-party laboratory tested and verified for quality and consistency. Manufactured under controlled conditions, it is prepared to support reliable use within research environments.

Research Use Notice: This product is intended strictly for research and laboratory use only. Not for human consumption, medical use, or diagnostic purposes.

Contents: Thymosin Alpha-1 (Peptide Compound)
Form: Lyophilized Powder
Purity: 99.89% (5mg) / 99.92% (10mg)
Grade: Research Grade
Storage: Store in a cool, dry environment under proper laboratory conditions
Handling: Follow standard laboratory safety protocols

Nothing hidden

Compound profile

Every component, identified. Sequences and identifiers are taken from PubChem and UniProt, so you can check each one yourself.

  • 01 / 01 Component

    Thymosin α1

    Thymalfasin · Tα1

    Peptide · 28 amino acids · N-acetylated

    Sequence

    Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN

    Formula
    C129H215N33O55
    Mol. weight
    3108.3 g/mol
    CAS
    62304-98-7
    PubChem CID
    16130571

    An N-acetylated 28-amino-acid peptide originally isolated from thymus tissue. It is studied for its effects on T-cell and innate immune signalling.

99.89%HPLC purity

Lot THA0002 Labeled 5mg Measured 5.34mg Tested Aug 3, 2026

Open certificate (PDF)
99.92%HPLC purity

Lot THA0001 Labeled 10mg Measured 10.66mg Tested Aug 3, 2026

Open certificate (PDF)

Each strength is produced and tested as its own lot, with its own signed certificate.

Published research

What the research covers

Short summaries of peer-reviewed literature on Thymosin Alpha-1: reviews, laboratory and animal studies, and analytical work. Shown for research reference only.

  • Review01 / 03

    Overview of the literature

    A 2020 review gathers the published work on thymosin α1, from its isolation and structure to laboratory and clinical research.

  • Review02 / 03

    Immune signalling

    Reviews describe thymosin α1 as an immune-modulating peptide and summarise studies on T-cell maturation and toll-like-receptor signalling.

  • Cell · mouse03 / 03

    Tumour-associated macrophages

    A 2022 study in Cancer Research examined whether thymosin α1 shifts tumour-associated macrophages away from the M2 phenotype during efferocytosis.

Full study index · PubMed (4) 2020 · Review Thymosin alpha 1: A comprehensive review of the literature.
Dominari A et al. · World J Virol
PMID 33362999
2016 · Review Immune Modulation with Thymosin Alpha 1 Treatment.
King R et al. · Vitam Horm
PMID 27450734
2001 · Review Thymosin alpha-1.
Ancell CD et al. · Am J Health Syst Pharm
PMID 11381492
2022 · Cell · mouse Thymosin α-1 Reverses M2 Polarization of Tumor-Associated Macrophages during Efferocytosis.
Wei YT et al. · Cancer Res
PMID 35364609
VERIFIED TEST RESULTS

Every batch, independently verified.

Open the signed certificate assigned to this product for its batch-specific laboratory report.

CRL Laboratories ISO/IEC 17025:2017 Accredited
CERTIFICATE OF ANALYSIS
99.89%
PURITY BY HPLC
LOT THA0002
TESTED Aug 3, 2026
LABELED 5mg
MEASURED 5.34mg
FULL QC PANEL
2 laboratory reports
Appearance Visual
Good REPORTED
Sample Matrix Reported in CoA
Lyophilized REPORTED
Purity HPLC
99.89% REPORTED
Net Peptide Content HPLC
5.34mg REPORTED
Identity Reported in CoA
Confirmed REPORTED
Fentanyl Screen Reported in CoA
Not Detected REPORTED
Heavy Metals Reported in CoA
Not Detected REPORTED
Sterility Reported in CoA
No Growth REPORTED
Endotoxin Reported in CoA
NMT 0.05 EU/mL REPORTED

Every batch on record.

2 certificates are assigned to this product.

Thymosin Alpha-1 · 5mg LATEST
LOT THA0002
99.89% Signed laboratory certificate
COA #COA-2026-QW0Z5
Labeled5mg
Measured5.34mg
IdentityConfirmed
Heavy metalsNot Detected
SterilityNo Growth
EndotoxinNMT 0.05 EU/mL
TestedAug 3, 2026
Thymosin Alpha-1 · 10mg
LOT THA0001
99.92% Signed laboratory certificate
COA #COA-2026-QW0Z4
Labeled10mg
Measured10.66mg
IdentityConfirmed
Heavy metalsNot Detected
SterilityNo Growth
EndotoxinNMT 0.05 EU/mL
TestedAug 3, 2026

Why Lexar

Lexar vs. a typical supplier

What you can check for yourself before you order, using the certificate published for this exact lot.

What to check Lexar Canada Typical supplier
Certificate matched to lot Lexar Canada: COA number tied to the vial lotCOA-2026-QW0Z5 · CRL LaboratoriesCOA-2026-QW0Z4 · CRL Laboratories Typical supplier: One generic certificate reused across batches
Purity of this lot Lexar Canada: Published per lot, by HPLC99.89% · lot THA000299.92% · lot THA0001 Typical supplier: A purity claim with no lot reference
Fill accuracy Lexar Canada: Measured mass in the vial5mg labeled → 5.34mg measured10mg labeled → 10.66mg measured Typical supplier: Label claim only
Lab accreditation Lexar Canada: ISO/IEC 17025:2017 accredited lab Typical supplier: In-house or unnamed lab
Contaminant screening Lexar Canada: Fentanyl, heavy metals, sterility, endotoxin Typical supplier: Purity only, if anything
Signed & downloadable Lexar Canada: Signed PDF on every product page Typical supplier: Screenshot, or “available on request”
When something goes wrong Lexar Canada: Free replacement, keep the original Typical supplier: Return shipping at your cost

“Typical supplier” describes common practice in the research-peptide market, not any named company.

Read the full certificate

No risk on arrival

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Delivery

From our shelf to your door

Tracked delivery to Canadian addresses, in plain packaging.

  1. 01 · Order

    Order before 3:00 PM ET

    Orders placed before the cutoff (12:00 PM PT) on a business day ship the same day.

  2. 02 · Dispatch

    Packed in 0–2 business days

    Sealed vial, plain outer packaging, no product branding on the box.

  3. 03 · In transit

    Tracked across Canada

    Tracking follows once the order leaves us. Standard delivery is an estimated 3–5 business days.

  4. 04 · Delivered

    At your door, protected

    Free shipment protection covers loss, theft and damage in transit.

  • Free standard shipping over $100
  • Overnight and 2-day options at checkout
  • Canadian addresses only
  • Plain packaging

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Orders are dispatched in 0–2 business days with tracking. Standard delivery is an estimated 3–5 business days after that, and overnight or 2-day options are available at checkout.

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What if my order arrives damaged, wrong or incomplete?

Contact us through chat support within 30 days of delivery with your order number, what went wrong and clear photos. Approved requests get a free replacement, and you keep the original item.

Can I return or exchange an order?

Except where the law requires otherwise, orders are final and we don't offer refunds, exchanges or returns. Problems with a delivery are covered by the free replacement above.

Do you ship outside Canada?

Not at the moment. Delivery is available to Canadian addresses only.

customer feedback

Customer reviews

143 reviews
4.8
★ ★ ★ ★ ★

based on 143 reviews

5 ★ 125
4 ★ 12
3 ★ 3
2 ★ 1
1 ★ 2
★ ★ ★ ★ ★

Vials arrived cold-packed and sealed. Labels are clean, batch number matches the paperwork.

Daniel M.
★ ★ ★ ★ ★

Ordered Tuesday night, plain brown box at my door in Ottawa by Friday morning. No branding anywhere.

Chris R.
★ ★ ★ ★ ★

The buy 2 get 1 applied itself in the cart exactly like the banner says. Watched the third one appear on its own.

Michael T.
★ ★ ★ ★ ★

Third order now. Same packaging, same speed, same quality every time. That consistency is why I stay.

Sarah K.
★ ★ ★ ★ ★

Was skeptical about ordering this kind of thing online but the whole process felt legit from cart to doorstep.

James P.
★ ★ ★ ★ ★

Customer support actually answered at 11pm on a Sunday. A real person, fixed my address typo in two minutes.

Ryan S.
★ ★ ★ ★ ★

Everything came bubble-wrapped with the vials in a foam insert. Nothing rattling around.

Melissa D.
★ ★ ★ ★ ★

Prices are right on the page, no games at checkout. Total matched to the cent.

Kevin B.
★ ★ ★ ★ ★

My GHK-Cu came with proper labeling and an intact seal. Exactly what the photos show.

Matthew H.
★ ★ ★ ★ ★

Fast. Like, faster than my usual pharmacy fast.

Jason C.
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Research use & disclaimers

  1. This product is intended strictly for research and laboratory use only. Not for human consumption, medical use, or diagnostic purposes.
  2. Research summaries describe published laboratory and animal studies. They are not claims about the effects of this product and are not medical advice.
  3. Compound identifiers (sequence, formula, molecular weight, CAS) are reference values from PubChem and UniProt. Batch values come from the certificate of analysis, which relates only to the lot tested.
  4. Comparisons describe common practice in the research-peptide market and do not refer to any named company.