Thymalin 20mg
Certificate of Analysis available
Thymalin
CAS # 63958-90-7
Mol. weight 858.864 g/mol
Formula C33H54N12O15
Identity
Manufacturer Generic Peptides
Active substance Thymalin (thymulin/FTS nonapeptide).
Synonyms Thymic Factor, Facteur Thymique Sérique , Serum Thymic Factor, Thymulin/FTS
Composition
Form Lyophilized powder
Purity ≥ 99% HPLC
Sequence pGlu-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn-OH
Product usage — Research only
- For in vitro testing and laboratory use only.
- Not for human or animal consumption.
- Bodily introduction is illegal.
- Handle only by licensed professionals.
- Not a drug, food, or cosmetic.
- Educational use only.
Thymalin Peptide: What It Is and Why Researchers Study It
Thymalin peptide in this listing refers to thymulin, also known as serum thymic factor (FTS)—a defined nine-amino-acid peptide studied for its role in immune signaling, inflammation and age-related immune changes.
The product identifiers, including CAS 63958-90-7, correspond to the FTS nonapeptide. This distinction matters: the name Thymalin is also used for a multi-peptide thymus extract. Research on that extract should not be treated as evidence for this defined peptide.
Thymalin Peptide Benefits and Research Uses
For this product, the relevant evidence comes from thymulin peptide research. Scientists investigate it to understand:
- Immune-cell communication: how signals associated with the thymus influence immune responses.
- Inflammatory signaling: how the peptide affects cytokines—the chemical messengers that help coordinate inflammation.
- Immune aging: how these pathways change with age and whether they can be modified in experimental models.
A 2026 study in Nature Communications examined age-related inflammation in mice and human samples. In aged mouse models, thymulin reduced inflammatory signaling and improved responses to cancer immunotherapy.
These findings explain the research interest, but they do not establish that this product treats cancer, restores immunity or reverses aging in people. The treatment results were preclinical, not a human clinical trial.
Why Zinc Matters in Thymulin Research
Thymulin has an important experimental feature: its classic biological activity depends on association with zinc. Foundational research distinguished the zinc-free FTS peptide from the active FTS–zinc complex. Original PNAS study
Researchers therefore need to consider both peptide identity and zinc conditions when interpreting an assay. The molecular formula listed for this product does not include zinc; it should not be assumed to arrive as a preformed zinc complex.
Thymalin vs Thymosin Alpha-1
Despite their connection to thymic biology, these are different research materials. The Thymulin/FTS peptide described here contains nine amino acids; Thymosin Alpha-1 contains 28. Their structures and evidence bases differ, so findings cannot simply be transferred from one to the other.
Buy Thymalin for Laboratory Research
Generic Peptides offers Thymalin in 20 mg and 50 mg lyophilized presentations, with a listed purity specification of ≥99% by HPLC.
Before you buy Thymalin, review the documentation for your selected batch, including peptide identity, measured content and purity. HPLC purity alone does not confirm zinc content, sterility or biological activity.
For laboratory research use only. Not for human or veterinary use.
Thymalin Storage: Temperature and Shelf Life
Store Thymalin in its original packaging at a temperature no higher than 25°C (77°F), protected from light. The unopened product has a shelf life of 3 years. Keep out of reach of children.
Storing the Unopened Vial
| Parameter | Storage Instructions | Practical Tips |
|---|---|---|
| Temperature | Keep at or below 25°C (77°F). | Choose a storage area away from radiators, heated equipment and direct sunlight. |
| Shelf Life | 3 years for the unopened product stored under the specified conditions. | Check the expiry date before use. The shelf life does not restart when the order arrives. |
| Light Protection | Retain the original packaging to protect the product from light. | Keep the carton closed between handling sessions; do not store the vial on a windowsill. |
| Vial Handling | Keep the vial sealed until ready for laboratory work. | Leave unused vials in their packaging rather than opening them for inspection. |
| Storage Location | Keep out of reach of children. | Use a designated research-material cabinet with controlled access. |
These conditions cover the unopened product. The 3-year shelf life does not apply to a solution prepared after reconstitution.
For laboratory research use only. Not for human or veterinary use.
Shipping & Product Authenticity
Every order is processed quickly and shipped with full tracking. All products come directly from the official Generic Peptides supply chain — in original manufacturer packaging, carefully handled from warehouse to your door.
Shipping Times
| Destination | Delivery Time | Notes |
|---|---|---|
| USA Domestic | 2–5 business days | Faster when local warehouse stock is selected at checkout |
| International | 10–15 business days | Tracking included; update frequency may vary by destination country |
| Order Processing | 24–48 business hours | Processing begins after payment confirmation |
| Tracking | Provided on all orders | Tracking number sent after dispatch; multiple warehouses may result in separate shipments |
Direct Supply & Secure Delivery
This product is supplied through the official Generic Peptides distribution chain and shipped in original manufacturer packaging. Orders are packed securely to protect the contents during transit and to respect customer privacy as a standard practice.
Outer packaging is neutral and does not display product details on the exterior — a common approach to protect shipments from damage, tampering, and unnecessary exposure during delivery.
What to Expect
- Orders are processed after payment confirmation
- USA domestic shipping is typically faster when local stock is selected
- International orders include tracking, though update frequency may vary by destination
- Multiple warehouses may result in separate shipments when applicable
Authenticity & Verified Supply
Every order includes full authenticity assurance: official Generic Peptides presentation, batch-linked lab documentation, and sealed original packaging — giving customers confidence in every purchase.
| Authenticity Feature | Details |
|---|---|
| Packaging | Original manufacturer packaging — sealed and unaltered |
| Lab Documentation | Batch-linked certificate of analysis available on request |
| Supply Chain | Sourced exclusively through official Generic Peptides distribution |
Shipping & Returns
For delivery details, tracking information and shipping policies, see our Shipping & Payments page.
Certificate of Analysis (COA)
Independent lab test reports are available for Thymalin 20mg and 50mg batches. Each certificate provides batch-level verification details, including measured content, purity result, analysis date, and report documentation.
Thymalin 50mg
Certificate of Analysis available
Click any certificate preview to enlarge the full Certificate of Analysis.
M. King
- April 30, 2026
Thymic polypeptide work in animal immune models. Performed as the literature describes.
Jade Foster
- April 12, 2026
We work within the Khavinson bioregulator framework and source Thymalin and Epitalon together since they're from the same research tradition. The theoretical foundation is unusual by Western standards but the compounds are what they are and these have been consistent.
Sadie B.
- April 1, 2026
The calf-thymus sourcing documentation included traceability information, which for an animal-derived extract is exactly what I wanted to see — TSE/BSE risk on bovine material is a real consideration and not every supplier addresses it. Appreciated the diligence.
Ruby L.
- March 19, 2026
Reorder for aged-animal immune-restoration work. Batch consistency has held.
Genesis Simmons
- March 12, 2026
Sourced this alongside the synthetic Thymosin Alpha-1 specifically to compare the extraction-based mixture against the defined single peptide. That methodological contrast — undefined complex versus characterized molecule, same biological target system — is itself an interesting research question, and having both from one catalog made the comparison feasible.
Serenity Patterson
- March 11, 2026
Decent for our T-cell maturation studies in animal models. The friction with this compound is inherent rather than vendor-specific — batch-to-batch variability is baked into any extraction-based product, and even with good QC you're never working with quite the same thing twice. The vendor's consistency is about as good as the methodology allows. I just wish the field would move toward defined synthetics for this kind of work.
Autumn H.
- February 21, 2026
Khavinson's organ-specific bioregulator concept is one of those frameworks that never really crossed into Western pharmacology, and working with these compounds means engaging with a whole parallel research literature that's mostly in Russian. This vendor doesn't oversell the mechanism — frames it as the tradition it comes from rather than dressing it up as established Western science. That honesty is rare for these compounds.
Piper Flores
- February 11, 2026
For comparative work between the extraction-based Russian thymic preparations and modern defined immunopeptides, Thymalin is the reference for the older methodology. It's almost a historical artifact of how immune-active preparations were made before synthetic peptide chemistry matured, and that's genuinely useful context for understanding the field's evolution.
Willow W.
- February 3, 2026
Performs adequately in our immune-modulation assays. Reconstituted without trouble. The recurring issue with sourcing Thymalin anywhere is that the entire evidence base is Khavinson-group and Russian-language, so independent verification is hard — that's not this vendor's problem to solve, but it's the reality of working with this compound and worth other researchers knowing before they build a project around it.
Thymalin is the name used for this laboratory product. Its listed identifiers describe thymulin/FTS, a defined peptide made of nine amino acids. Researchers study it to investigate signaling between the thymus and immune system.
This Thymalin product corresponds to the nine-amino-acid thymulin/FTS peptide. Thymosin Alpha-1 is a separate 28-amino-acid molecule. Their shared connection to the thymus does not make them equivalent or suitable for identical experiments.
A thymus extract contains multiple peptide components, whereas this product is listed as one defined peptide. When choosing published research to guide an experiment, match the actual substance studied—not simply the name "Thymalin."
HPLC separates sample components to assess chromatographic purity under specific test conditions. The ≥99% specification does not mean that 99% of the powder's total weight is peptide, nor does it establish sterility, identity or biological activity.
Zinc binding is important to thymulin's activity in classic biological assays. Researchers should distinguish the unbound peptide from its zinc complex. The listed molecular formula excludes zinc, so the product should not automatically be considered a preformed complex.
No. Thymalin from Generic Peptides is a laboratory research material, not a product for personal use or veterinary treatment. Neither its vial size nor its purity specification establishes suitability for administration.
Useful search terms include thymulin, serum thymic factor (FTS), facteur thymique sérique and nonathymulin. Always check the sequence and zinc status alongside the name, because terminology alone may not fully describe the material used in an experiment.
Researchers investigate how thymulin influences immune-cell communication, inflammatory signals and changes associated with immune aging. Experimental work also explores cancer immunity. These areas explain the scientific interest; they do not establish treatment or anti-aging benefits for people.
The thymulin/FTS sequence is pGlu-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn-OH. It contains nine amino acid residues, starting with pyroglutamate, abbreviated pGlu. This sequence identifies a specific peptide rather than a mixture of thymus-derived components.
Thymalin is offered as freeze-dried powder in 20 mg and 50 mg vial options. These labels describe the listed amount per vial—not a solution concentration, experimental protocol or recommended dose.
Start with the certificate of analysis for the exact lot you are ordering. Check identity, purity and measured peptide content separately, then review storage instructions. A general product specification cannot replace results for a specific batch.
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