Buy Thymalin in Canada from Anglo Peptides, a Canadian research-grade supplier of the thymic peptide preparation Thymalin. Every vial is produced in a cGMP-compliant facility and lyophilised for stability, and each order includes a batch-specific certificate of analysis. Orders ship same-day in cold-pack packaging and arrive within 1 to 3 business days across Canada. The summary below reflects the published research literature and is provided for laboratory research context only.

What Is Thymalin?
Thymalin is not a single defined molecule. It is a complex of low-molecular-weight polypeptide fractions extracted from the thymus of calves or cattle, a class of preparation the Russian literature calls a thymic peptide bioregulator. It was developed in the 1970s by V. Kh. Khavinson and V. G. Morozov and has been used as an immunomodulatory preparation in the former USSR and Russia since the early 1980s. Because Thymalin is a heterogeneous mixture of peptides rather than one sequence, no single molecular formula, exact molecular weight, or single canonical CAS number applies to it, and any product page that assigns it one is misrepresenting the material. Modern work from the originating group attributes much of its activity to short di- and tripeptides found in or modelled on the extract, notably KE (Lys-Glu) and EW (Glu-Trp), but these are characterised active components, not a definition of the whole preparation.
Thymalin should be distinguished from two defined single molecules it is often confused with: thymulin, a zinc-dependent nonapeptide of nine amino acids, and thymosin alpha-1, a defined 28-amino-acid polypeptide. Thymalin is a mixture; those two are single sequenced molecules.
Mechanism of Action
Thymalin is described in the literature as an immunoregulator rather than a simple stimulant, reported to restore immune balance.
Immune regulation. It is reported to regulate the number and ratio of T- and B-lymphocytes and their subpopulations, increase their functional activity, and enhance phagocytosis and non-specific resistance, framed within the peptide-bioregulation model as acting on T-cell maturation and the restoration of age- or stress-impaired immune function.[3][5]
Proposed molecular activity. More recent in-vitro and in-silico work from the St. Petersburg group proposes that short constituent peptides such as KE and EW interact with DNA and modulate gene expression and protein synthesis; one report described reductions in IL-1β, IL-6 and TNF-α in stimulated human peripheral blood mononuclear cells.[5]
Research Applications
Reported research and historical clinical use centres on immune function and aging.
Immune restoration. Reported use in the context of secondary immunodeficiency and recovery of immune and haematopoietic function.[3]
Geroprotection and aging. A core theme of the originating group. Rodent studies reported effects on aging biomarkers and lifespan,[2] and a long-running human cohort reported reduced mortality and improved physiological indices in Thymalin-treated elderly subjects.[1]
State of the evidence. The great majority of evidence is older, from the 1980s to 2000s, produced by a small set of affiliated Russian groups, often published in Russian-language venues and frequently lacking the randomisation, blinding, registration and independent replication expected of modern controlled trials. Independent modern human trials are essentially absent, and lifespan or mortality claims in particular should be treated as preliminary. Thymalin is supplied as an investigational research material for laboratory use only.
Stability, Solubility and Handling
Anglo Peptides supplies Thymalin as a lyophilised powder. For research it is reconstituted with sterile or bacteriostatic water, swirled gently rather than shaken. Store the lyophilised powder cold and protected from light and moisture, with long-term storage frozen at -20°C; keep reconstituted solution refrigerated and use within a short window, avoiding repeated freeze-thaw cycles. These notes apply to in-vitro and animal research only.
Product Specifications
- Compound: Thymalin, thymic polypeptide complex (mixture of peptide fractions)
- Composition: Low-molecular-weight polypeptides extracted from bovine thymus; no single defined sequence
- Molecular formula / weight: Not applicable (heterogeneous mixture)
- CAS: Not applicable as a single identifier (mixture)
- Purity / identity: Characterised by the lot-specific certificate of analysis
- Size: 10 mg per vial
- Form: Lyophilised powder
- Documentation: Batch-specific certificate of analysis
- Origin: Made in Canada
Quality, Testing and Canadian Sourcing
Every batch of Anglo Peptides Thymalin ships with a lot-specific certificate of analysis. Producing and finishing vials in Canada lets us control quality and ship quickly without customs delays. Read more on our Canadian sourcing page. Researchers studying the Khavinson peptide bioregulators often examine Thymalin alongside Epithalon and Pinealon.
Thymalin Among the Thymic Peptides
Thymic peptides are a broad category, and Thymalin occupies a particular place within it that is easy to misrepresent. At one end of the category are precisely defined single molecules: thymosin alpha-1, a twenty-eight-residue peptide now produced synthetically as thymalfasin, and thymulin, a zinc-dependent nonapeptide. At the other end are complex extracts, and Thymalin belongs here, as a mixture of low-molecular-weight polypeptide fractions obtained from the thymus rather than a single sequenced compound. The synthetic dipeptides KE and EW that the originating group associates with its activity are characterised components or models, not the definition of the preparation itself, and EW in particular forms the basis of the separate drug Thymogen. For research, the practical consequence is that Thymalin must be treated as a defined-by-process extract whose identity is described by its certificate of analysis, not as a molecule with a single formula or sequence.
Considerations for Research Use
Two points dominate sensible use of Thymalin. First, because it is a mixture, batch-to-batch consistency and characterisation are central, so the certificate of analysis rather than a nominal molecular weight is the reference point for identity, and comparisons across studies should account for preparation differences. Second, the evidence base is unusual: most of it is older, produced by a small set of affiliated Russian groups, and frequently lacks the randomisation, blinding and independent replication expected of modern trials, so claims, especially around lifespan or mortality, should be treated as preliminary and historical rather than established. Designed appropriately, with clear controls and explicit acknowledgement of these limitations, Thymalin remains a legitimate subject of immunological and mechanistic research. It is supplied for laboratory research only.
Reconstitution, Storage and Handling in Detail
For laboratory use, the lyophilised powder is typically brought to room temperature before opening to avoid condensation, then reconstituted by adding sterile or bacteriostatic water slowly down the inside wall of the vial rather than directly onto the powder, and swirled gently rather than shaken to limit foaming and shear stress. The choice of diluent depends on the study: sterile water is common for single-session work, while bacteriostatic water, which contains a small amount of benzyl alcohol, is often preferred when a solution will be drawn from over several days. Once reconstituted, the solution is kept refrigerated at 2 to 8 degrees Celsius, protected from light, and used within a defined window, with aliquoting into single-use portions the most reliable way to avoid repeated freeze-thaw cycles. The lyophilised powder itself is far more stable than any solution and is best stored frozen, sealed and desiccated, for long-term holding. These are general research-handling conventions; the lot-specific certificate of analysis and its storage guidance should always take precedence for a given batch.
Frequently Asked Questions
What is Thymalin?
Is Thymalin the same as thymulin or thymosin alpha-1?
Why is there no single molecular weight or CAS number?
How strong is the evidence for Thymalin?
Is Thymalin a single peptide?
How is Thymalin different from thymosin alpha-1 and thymulin?
What are KE and EW in relation to Thymalin?
How strong is the human evidence?
References
- Khavinson VKh, Morozov VG. Peptides of pineal gland and thymus prolong human life. Neuro Endocrinol Lett. 2003;24(3-4):233-240. PubMed
- Anisimov VN, Khavinson VKh, Mikhalski AI, Yashin AI. Effect of synthetic thymic and pineal peptides on biomarkers of ageing, survival and spontaneous tumour incidence in female CBA mice. Mech Ageing Dev. 2001;122(1):41-68. PubMed
- Khavinson VKh, Morozov VG. Geroprotective effect of thymalin and epithalamin. Adv Gerontol. 2002;10:74-84. PubMed
- Kuznik BI, Khavinson VKh, Shapovalov KG, et al. Peptide Drug Thymalin Regulates Immune Status in Severe COVID-19 Older Patients. Adv Gerontol. 2021;11(4):368-376. DOI
- Linkova N, Khavinson V, Diatlova A, et al. The Influence of KE and EW Dipeptides in the Composition of the Thymalin Drug on Gene Expression and Protein Synthesis Involved in the Pathogenesis of COVID-19. Int J Mol Sci. 2023;24(17):13377. PubMed
Research use only. Thymalin supplied by Anglo Peptides is intended exclusively for licensed laboratory and academic research. It is not a drug, dietary supplement, or medical product, and is not for human consumption, diagnosis, or treatment.
Researchers who buy Thymalin from Anglo Peptides receive a vial verified to ≥99% purity, batch-tested by Janoshik Labs, and shipped from within Canada. Choose the 10mg size above.






Tariq S. –
Hard to find Thymalin in Canada but glad Anglo carries it. Shipped same day, came well packaged. Clean powder, reconstituted easily. Happy with this purchase.
Sandra H. –
Second time ordering Thymalin from Anglo. Same-day shipping both times, quality has been consistent. Dissolved clean with no issues. Solid source.
Sam V. –
Thymalin is a niche compound and Anglo Peptides is one of the very few domestic Canadian sources. COA is thorough, reconstitution is clean. Arrived via Xpresspost in 2 days.
Petra B. –
Exceptional product from a Canadian manufacturer. Dissolved immediately in BAC water, zero cloudiness. The Janoshik documentation gives me full confidence. Will reorder.
Rhys H. –
Good quality Thymalin with solid COA documentation. Fast shipping to Edmonton. Reconstituted cleanly. Would like a 20mg option in future but overall very satisfied.