Research use only. NovaPep supplies research-grade peptides for laboratory and in-vitro work only, not for human or veterinary use. By continuing you confirm you are 18 or older and ordering for research.

HPLC-tested research peptides. For laboratory use only.Batch COA on every lotDispatched same day before 3pm cut-off
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Thymalin 10mg lyophilised peptide vialNovaPep

Immune Peptides

Buy Thymalin Australia: Thymalin 10mg Research Vial

$119.99AUD, GST included

In stock in Australia, batch certificate ready

Size: 10 mg vial

  • Certificate of analysis published for every batch
  • Third-party HPLC purity and MS identity testing
  • Dispatched same day before 3pm cut-off, tracked Australia-wide
  • Research use only, sold to adults aged 18 and over

Buy Thymalin online in Australia as a 10 mg research vial of the thymic peptide complex, tested on every lot. Thymalin, supplied in Australia for laboratory research, is a thymic bioregulator made of short polypeptides from calf thymus rather than a single defined sequence. Sometimes spelled timalin, it was first produced during the 1970s by Vladimir Khavinson and Vyacheslav Morozov at the Kirov Military Medical Academy in Leningrad. Researchers use it to study the ageing thymus, T cell balance and lymphocyte maturation, and its complex make-up makes lot control central to that work. Mass spectrometry checks the identity of each Thymalin lot and HPLC measures its purity, with the certificate available to read before you check out. For a single defined thymic chain to compare against, see Thymosin Alpha-1. The vial holds only dry powder, so add bacteriostatic water and use the peptide calculator to turn your chosen volume into a concentration. Keep the unopened vial frozen at -20 °C and shielded from light. NovaPep sells Thymalin as a laboratory research reagent to adults 18 years of age or older.

For laboratory research use only. Not for human or veterinary use. Not TGA approved. See the NovaPep research use policy.

What Is Thymalin?

Thymalin is a blend of small peptides taken from calf thymus, the chest gland where immature white blood cells are educated into T cells. It is not a single molecule with one sequence. This sets Thymalin apart from almost every other vial in our catalogue, and it affects how its research literature should be interpreted. Thymalin is for sale in Australia as a 10 mg research vial, ready to order online from local stock.

How the thymus came to supply research peptides

Precursor cells exit the bone marrow and migrate to the thymus, where they develop into T cells able to distinguish the body's own proteins from foreign material. Thymic epithelial cells help drive this process, in part through small signalling molecules, and from the 1960s a number of laboratories tried to isolate them. Their efforts produced a group of thymic preparations with confusingly alike names, and the Leningrad bioregulator team added an extract of its own to that group.

Thymalin began as a calf thymus extract produced in Leningrad at a time when Soviet scientists were looking for short peptides that might regulate the tissues they were taken from. The same team went on to isolate smaller active pieces, most notably thymogen, the dipeptide Glu-Trp, and the programme later produced pineal and vascular bioregulators as well.

Inside Thymalin: Its Components and Proposed Action

The idea behind the bioregulator programme is that short peptides taken from a tissue may help regulate that same tissue. For Thymalin, that means signals linked to the maturation of T cells in the thymus. Its best characterised fragments are small enough to be made and studied on their own.

In a 2021 review in Biology Bulletin Reviews, Khavinson, Linkova, Chalisova and Ivko describe Thymalin as a polypeptide complex that contains a large number of peptides. Three of the short ones have been characterised so far. The dipeptide Glu-Trp (EW) was isolated from the extract by reversed-phase HPLC and only afterwards produced synthetically. A 2020 study by Zhurkovich and co-workers, combining mass spectrometry with HPLC, identified Lys-Glu (KE, referred to as vilon in Russian publications) and the tripeptide Glu-Asp-Pro (EDP, known as crystagen).

Thymalin Research: What Studies Have Looked At

The research it supports focuses on the ageing thymus. After adolescence the gland shrinks and makes fewer new T cells, and published Thymalin studies track helper to suppressor T cell ratios, markers of lymphocyte maturation and cytokine signalling in aged animal models. A large share of this work was published in Russian-language journals, so treat it as exploratory, and handle older study designs with care before placing their results beside current immunology research. NovaPep supplies it as a research reagent rather than a medicine, in our immune peptides collection. Shop Thymalin online in Australia for this research, knowing each lot has been checked for identity and purity.

The most cited cell finding is a 2020 study on human haematopoietic stem cells, again from the Khavinson group. It reported that Thymalin lowered expression of CD44 and CD117, which mark early and intermediate stages, by two to three times, while CD28, a marker found on mature T cells, increased 6.8-fold. The authors interpreted this as the extract moving precursors along the route to T cell maturity, though it remains one in vitro result that has yet to be repeated independently.

A Registered Drug in the Soviet Union

Unlike nearly everything else we stock, Thymalin has a past as a registered drug. According to a 2013 paper by Khavinson and colleagues, the thymus preparation was registered by order of the USSR Ministry of Health on 10 November 1982. The paper calls it the first medicine in the peptide bioregulator class. Its origins lie at the Kirov Military Medical Academy in Leningrad, where Khavinson and Vyacheslav Morozov researched thymus-derived peptides during the 1970s, long before the St Petersburg institute was founded.

Thymalin Specifications

Product nameThymalin (timalin, thymic bioregulator)
Size10 mg vial
CompositionA complex of low molecular weight polypeptides from the thymus, whose best-characterised active fragment is the dipeptide Glu-Trp (thymogen)
PresentationFreeze-dried powder in a glass vial with stopper and flip-off cap
Quality testingMass spectrometry confirms identity and HPLC measures purity, and each lot has its own published certificate
In the boxA single 10 mg vial of Thymalin, with bacteriostatic water available as a separate item
Storage conditions-20 °C while sealed and protected from light, then 2 to 8 °C once reconstituted
Stock statusIn stock
Intended useLaboratory in vitro research only

Thymalin suits projects that build on the bioregulator tradition of thymus research, and each 10 mg vial can be traced back to a tested lot. Of all the compounds in our immune range it has the longest history, and it is also the one where lot documentation matters most.

A Thymalin unit is one 10 mg glass vial of lyophilised powder, closed with a flip-off cap and shipped dry.

Products sharing a name are not necessarily the same, so the certificate counts for more than the label. Each lot's report shows the mass spectrometry profile used for identity, the HPLC purity figure and the date of analysis, and any lot that falls outside specification is never offered for sale.

Because there is no single sequence to match, the mass spectrometry profile serves as a fingerprint for the lot rather than a single target value. Laboratories using Thymalin over several years often store every certificate with their raw data so that a new lot can be compared peak by peak.

Handling and Storage of Thymalin

For reconstitution, allow the vial to reach room temperature, let bacteriostatic water run gently down the glass and swirl until the solution is clear. For example, adding 4 mL to the 10 mg vial gives 2.5 mg/mL, and the reconstitution calculator works out any other volume. Thymalin for sale in Australia leaves our shelves by tracked post, so it reaches your bench in good condition.

Store the unopened vial at -20 °C, kept dry and out of the light. After mixing, keep the solution at 2 to 8 °C, portion it into aliquots for individual runs and finish it within 28 days. The peptide storage guide has more on shelf life.

Thymalin Compared With Thymosin Alpha-1 and Thymulin

Pick Thymalin when your work follows the bioregulator programme and you want the same material its published studies used as a benchmark. Pick Thymosin Alpha-1 when you need one 28 residue sequence with a fixed mass, which is simpler to compare with mainstream immunology literature.

A frequent error is mixing up Thymalin and thymulin. Thymulin is a distinct, defined nonapeptide released by thymic epithelium, it only works with a bound zinc ion, and its research history dates to studies in Paris during the 1970s. Search results, journal articles and even product pages confuse the two. When a protocol refers to thymulin, the compound in question is a nine-residue zinc complex rather than this calf-derived mixture, so findings will not carry across. If you need a defined synthetic chain with a mainstream immunology track record, thymosin alpha 1 is the better match.

Ageing studies frequently include Epitalon as well, the pineal tetrapeptide from the same research school, found in our longevity peptides range. Running the thymic reagents together lets your lab test them under the same conditions, each backed by its own lot certificate.

Other Names for Thymalin

You may see the compound listed as Thymalin, thymaline, timalin or Timalinum, and it belongs to the cytomedins, the peptide bioregulators created by the Khavinson school. Its short fragment thymogen also goes by the name oglufanide in more recent literature.

Related immune terms include thymic involution, T helper and T suppressor cells, the CD4 to CD8 ratio and immunosenescence. These describe areas of research and are not the names of other products.

Buy Thymalin Online in Australia

There is one fill size, a 10 mg vial. One vial supports a set block of work, for example a lymphocyte culture series or a panel of immune assays, and the amount suits the 28 day period that starts when you reconstitute. Since most panels last a few weeks, one or two vials are usually enough for a pilot, followed by a larger order once your method is established.

As the material is a polypeptide complex and not a single chain, keeping a study on one lot is more important here than for most peptides. Purchase all the vials your project will need at the beginning so they share one certificate, and record the lot code in your notes. Only adults aged 18 and over may buy, and they confirm their age before paying.

Find your lot in the COA library before purchasing and compare it against any earlier lot your laboratory has worked with. Our guide on how to read a COA walks through the chromatogram and the main figures.

NovaPep sells Thymalin online only, with no shop or pickup point, and packs every order from Australian stock for delivery to all states and territories. When you order before 3pm on a business day, it is dispatched the same day.

How Australian Regulations Treat Thymalin

That Soviet registration never extended to Australia. As of October 2026 Thymalin does not appear by name in the Poisons Standard. We reviewed the October 2026 instrument, and the only thymic peptide it lists is thymosin beta 4, a different molecule placed in Schedule 4. So no schedule covers Thymalin by name, yet the TGA still requires any peptide supplied for a therapeutic purpose to be entered on the Australian Register of Therapeutic Goods, and it has made unapproved peptide products a compliance focus. In practice, Australian buyers looking for Thymalin will find it through laboratory reagent suppliers.

Order Thymalin from NovaPep and your vial comes from inventory held in Australia, sold as a research reagent to adults 18 and older for laboratory work and not for human or veterinary use. If your project needs a fully synthetic thymic chain instead, set it against the 28 residue Thymosin Alpha-1 vials, and use the published lot certificates to review either compound before buying.

Thymalin at a Glance

A complex of thymic bioregulator peptides

Thymalin is a mix of short polypeptides from the thymus, first developed in Leningrad in the 1970s and researched as a regulator of thymic function.

Buy a single 10 mg vial online

Each sealed 10 mg vial contains only dry powder. Bacteriostatic water is sold separately.

Immune ageing research

Studies look at T cell balance and lymphocyte maturation in cultured cells and aged animal models. It is a laboratory reagent with no approved use.

Compared with Thymosin Alpha-1

Thymosin Alpha-1 is a single defined sequence, whereas Thymalin is a polypeptide complex backed by a narrower body of research.

Keep it frozen

Store the sealed vial at -20 °C away from light. Once mixed, refrigerate the solution and use it within 28 days.

Documented by lot

Mass spectrometry and HPLC are run on every lot, and the certificate is listed in the COA library under the lot code shown on the label.

Thymalin FAQ

What exactly is Thymalin?

Thymalin is a complex of short peptides extracted from calf thymus, first produced in Leningrad in the 1970s. It is not one defined sequence. Three short components have been characterised so far, the dipeptides Glu-Trp and Lys-Glu and the tripeptide Glu-Asp-Pro. It is not the same as thymulin, a zinc-bound nonapeptide.

Why should a study stay on a single Thymalin lot?

Because Thymalin is a thymic polypeptide complex and not one sequence, minor lot to lot differences are more likely than with a short synthetic peptide. Buying all the vials for a project together keeps the work under one certificate and takes away a source of variation in your data.

How do laboratories use Thymalin?

It serves as a reference material in research on the thymus and immune ageing, used in cell culture and animal work on T cell ratios, lymphocyte maturation and cytokine signalling. NovaPep sells it only for in vitro laboratory research, never for human or veterinary use, and only to adults 18 years and over.

Which should I buy, Thymalin or Thymosin Alpha-1?

Thymosin Alpha-1 fits studies that need a single defined chain of 28 amino acids that aligns with the broader immunology literature. Thymalin fits work that follows Russian bioregulator research on thymic involution. Each addresses a different question, and you can order both together, each with a separate certificate.

What is the process to order Thymalin peptide online in Australia?

Put the 10 mg vial in your cart from this page and finish checkout. It ships from stock held in Australia and it goes out the same day if you order before 3pm on a business day. No diluent comes with it, so add bacteriostatic water to your order if your lab is out.

Can I buy Thymalin near me?

You can order online from NovaPep wherever your lab is located. We have no retail store or collection desk, and parcels are sent with tracked delivery to every Australian state and territory. Ordering directly lets you see the lot certificate before you pay, which is important for a polypeptide complex such as this.

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