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Thymosin Alpha-1 · 5mg
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10 vials
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99%+ HPLC Purity — Independently verified by accredited US laboratory -
Endotoxin-Screened — LAL tested, LPS-free, endotoxin report available
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GMP-Certified Manufacturing — USA facility, ISO 9001:2015
-
Lyophilized for Stability — Shipped cold-packed, intact for reconstitution
Molecular Weight
Third Party Tested
APPLICATION
For Research Use only
Form
Lyophilized Powder
Storage
-20°C Long Term
Purity (HPLC)
99%+ Third Party Verified
Manufacture
USA / GMP
4.9 847 verified reviews
Thymosin Alpha-1 · 5mg
Total Price
$620.61
Discounted Price
$359.95
Vials
10 vials
You Save
$260.66
42% OFF
Select Strength (mg)
99% HPLC Purity
Select Vials
Bulk pricing applied
📈 Upgrade to 10 vials and save an extra vs. buying 5 — nearly 3 free vials.
Select Purchase Option:
-
99%+ HPLC Purity —
Independently verified by accredited US laboratory
-
Endotoxin-Screened —
LAL tested, LPS-free, endotoxin report available
-
GMP-Certified Manufacturing —
USA facility, ISO 9001:2015
-
Lyophilized for Stability —
Shipped cold-packed, intact for reconstitution
Molecular Weight
Third Party Tested
APPLICATION
For Research Use only
Form
Lyophilized Powder
Storage
-20°C Long Term
Purity (HPLC)
99%+ Third Party Verified
Manufacture
USA / GMP
Thymosin Alpha-1 5mg is a laboratory research peptide modeled after a naturally occurring thymic fraction and used to study immune-related signaling pathways in controlled experimental systems. Originally isolated from thymus tissue, it is widely used in research to examine T-cell maturation, cytokine behavior, antigen-presentation mechanisms, and receptor-level interactions. This product is supplied strictly for research use only. It is not approved or intended for human or animal use, and any discussion of biological activity refers only to
preclinical or in vitro research.
Over the past several decades, Tα1 has been utilized extensively in in-vitro studies and experimental models designed to explore the molecular dynamics of immune regulation. Research teams often employ this peptide to observe changes in cytokine behavior, examine antigen-presentation mechanisms, characterize receptor-level interactions, and assess how immune pathways adapt under conditions of induced stress. These investigations are conducted strictly in research settings and have contributed valuable insights into immune modulation, intracellular communication, and molecular defense organization.
Thymosin Alpha-1 5mg supplied for research purposes is manufactured as a high-purity peptide, suitable for laboratory experimentation requiring stringent quality parameters. The material is produced as an LPS-free peptide and an endotoxin-free peptide, helping to reduce confounding variables in immune and cellular signaling studies. All research peptides are endotoxin tested to ensure consistency, reliability, and reproducibility across experimental applications.
It is essential to emphasize that Thymosin Alpha-1 is not approved, marketed, or intended for human or animal use. Its role is strictly limited to scientific research and controlled laboratory experimentation. No claims are made regarding therapeutic outcomes, physiological enhancement, or direct biological benefit outside of research observations. Any reference to outcomes pertains solely to experimental models, laboratory systems, or research subjects under controlled study conditions.
Thymosin Alpha-1 at a glance
| Sequence | Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn |
|---|---|
| Molecular formula | C₁₂₉H₂₁₅N₃₃O₅₅ |
| Molecular weight | 3108.315 g/mol |
| CAS number | 62304-98-7 |
| PubChem CID | 16130571 |
| Form supplied | Lyophilized powder |
| Application | Research use only |
What is Thymosin Alpha-1?
Thymosin Alpha-1 (Tα1) is a laboratory research material used to examine immune-signaling pathways, T-cell maturation, cytokine regulation, and receptor interactions in controlled experimental models. References to immune-related research topics are provided for scientific context only and must not be interpreted as claims of therapeutic, diagnostic, or clinical benefit. This product is not offered for human or veterinary use.
How is Thymosin Alpha-1 studied in the lab?
Experimental findings often focus on cytokine production, antigen presentation, and coordinated white blood cell signaling. These observations are used to map immune-regulation pathways in controlled laboratory studies.
Stress Response & Immune Interaction Models
A significant number of laboratory studies explore Tα1 under chemical, oxidative, or environmental stress to understand how immune pathways adapt in controlled research settings.
Research on Inflammatory Pathway Modulation
Investigators often incorporate Tα1 into inflammation-associated assays to observe shifts in signaling proteins and cytokines. These studies are used to understand immune-regulation cascades in laboratory models.
Compatibility with Multi-Compound Research Designs
Tα1 is frequently examined alongside additional peptides or molecular agents to explore combined molecular effects, interference patterns, or comparative outcomes across controlled research environments.
What has preclinical research reported?
(All statements below refer strictly to laboratory research results and experimental modeling, not to therapeutic or personal-use contexts.)
Immune System Modeling and Regulation
Within research platforms, Tα1 is frequently used to examine how immune cells activate, differentiate, bind to receptors, and communicate with one another after exposure to specific stimuli. Its known influence on T-cell maturation makes it a useful marker for following immunepathway progression at the cellular level.
Balanced Immune Signaling Studies
In laboratory settings, Tα1 is studied as a modulatory peptide rather than a purely stimulatory one, which allows researchers to observe immune-signaling shifts in controlled models.
Modulatory Effects of Thymosin Alpha-1 on Immune Signaling in Experimental Models
Thymosin alpha-1, originally isolated from the thymus gland, acts as an important regulator of immune responses. The thymus plays a vital role in the development of T lymphocytes, key cells in the adaptive immune system.
Studies on animals without thymus glands have shown that thymosin alpha-1 alone can restore immune function and reduce widespread infection. It works by activating signaling pathways and promoting the release of molecules that coordinate the actions of different immune cells throughout the system.
References
- Xu, Y., Jiang, Y., Wang, L., Huang, J., Wen, J., Lv, H., Wu, X., Wan, C., Yu, C., Zhang, W., Zhao, J., Zhou, Y., & Chen, Y. (2019). Thymosin Alpha-1 Inhibits Complete Freund's Adjuvant-Induced Pain and Production of Microglia-Mediated Pro-inflammatory Cytokines in Spinal Cord. Neuroscience bulletin, 35(4), 637–648. https://doi.org/10.1007/s12264-019-00346-z. PMID 30790216
- Romani, L., Oikonomou, V., Moretti, S., Iannitti, R. G., D'Adamo, M. C., Villella, V. R., Pariano, M., Sforna, L., Borghi, M., Bellet, M. M., Fallarino, F., Pallotta, M. T., Servillo, G., Ferrari, E., Puccetti, P., Kroemer, G., Pessia, M., Maiuri, L., Goldstein, A. L., & Garaci, E. (2017). Thymosin α1 represents a potential potent single-molecule-based therapy for cystic fibrosis. Nature medicine, 23(5), 590–600. https://doi.org/10.1038/nm.4305. PMID 28394330
- King R, Tuthill C. Immune Modulation with Thymosin Alpha 1 Treatment. Vitam Horm. 2016;102:151-178. doi:10.1016/bs.vh.2016.04.003. PMID 27450734
- Matteucci C, Grelli S, Balestrieri E, et al. Thymosin alpha 1 and HIV-1: recent advances and future perspectives. Future Microbiol. 2017;12:141-155. doi:10.2217/fmb-2016-0125. PMID 28106477
For laboratory research use only. Products on this website are intended solely for in-vitro research. They are not medicines, have not been evaluated by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease. Any administration to humans or animals is strictly prohibited.
What are these peptides made for?
Our peptides are produced exclusively for laboratory and scientific research purposes.
Licensed Peptides™ products are developed using industry-standard synthesis and purification protocols, making them suitable for in vitro research, analytical testing, and experimental models.
Research-grade standards
- Synthesized via Solid Phase Peptide Synthesis (SPPS)
- Purified using advanced HPLC methods
- Verified through analytical quality control processes
- Screened for heavy metals and endotoxins
Consistency across batches
Strict process controls ensure reproducibility, allowing researchers to work with confidence across experiments.
Applications
Our peptides are commonly used in research involving:
- Cellular signaling pathways
- Tissue remodeling and repair mechanisms
- Extracellular matrix regulation
- Molecular biology and biochemical studies
All products are intended for research use only and are not for human or animal consumption, therapeutic use, or clinical application.
Why buy from Licensed Peptides
At Licensed Peptides™, quality isn’t a claim — it’s a controlled, repeatable process.
Every peptide we produce follows a strict, pharma-grade workflow designed to ensure purity, stability, and consistency from synthesis to delivery.
What sets us apart
ISO-certified cleanroom manufacturing
All peptides are synthesized in sterile, controlled environments to eliminate contamination risk and ensure batch consistency.
>99% verified purity (HPLC tested)
We use advanced High-Performance Liquid Chromatography (HPLC) to separate and verify peptide purity with precision.
Comprehensive safety testing
Each batch undergoes heavy metal and endotoxin screening to ensure it is free from hidden contaminants.
Pharma-grade raw materials
We start with rigorously tested amino acids and reagents, ensuring integrity at the molecular level.
Lyophilized for stability
Freeze-dried peptides maintain long-term stability, potency, and reliability for research applications.
Nitrogen-sealed vials
Every vial is protected from oxygen and moisture, preserving structural integrity during storage and transit.
Built for serious research
From synthesis to delivery, every step is engineered to meet the expectations of professionals who require accuracy, consistency, and reliability.
For laboratory research use only. Not for human or veterinary use.
How orders ship
We understand that timing and product integrity are critical for research.
| Ships to | United States (including minor outlying islands) |
|---|---|
| Processing days | Monday to Friday, excluding holidays |
| Daily cut-off | Paid orders placed before 4:00 PM PST are typically shipped the same business day |
| Free shipping | FedEx 2-Day Express on orders over $200 and for VIP members |
| Standard | USPS Ground Advantage, 3–7 business days (not guaranteed) — $8.95 |
| Expedited | FedEx 2-Day $11.95 · UPS 2-Day $19.95 · FedEx Next Day $44.99 |
| Signature | Required on delivery for orders of $1,000 or more |
How orders are handled
Cold chain protection
Products are stored in industrial-grade freezers prior to shipment to maintain stability and purity.
Secure & protective packaging
Each order is carefully packed to protect against temperature fluctuations, moisture exposure, and physical damage during transit.
Tracking
Once your order has shipped you will receive a tracking number by email, so you can monitor delivery progress.
Shipped from the United States
Orders are dispatched domestically from a U.S.-based operation, so there are no international customs steps.
Delivery times
Shipping times are estimates and begin after order processing. Delays may occur due to carrier issues, weather, or other unforeseen factors, and delivery dates are not guaranteed. Full terms are in our Shipping & Delivery Policy.
For laboratory research use only. Not for human or veterinary use.
Additional information
| pack | 1 pack, 3 pack, 5 pack, 10 pack |
|---|
Storage conditions at a glance
| Lyophilized, in transit | Stable for shipping for up to 3–4 months |
|---|---|
| Lyophilized, short term | Room temperature is usually adequate for several weeks; refrigeration under 4°C (39°F) is generally acceptable |
| Lyophilized, long term | Freezer at -80°C (-112°F) for several months to years |
| After reconstitution | Refrigerated; stable for up to 30 days |
| Light and moisture | Keep cold and away from light in the original sealed vial |
Why the powder is stable
All of our products are manufactured using the lyophilization (freeze drying) process, which keeps them stable for shipping for up to 3–4 months.
Lyophilization is a unique dehydration process, also known as cryodesiccation, where the peptides are frozen and then subjected to low pressure. This causes the water in the peptide vial to sublimate directly from solid to gas, leaving behind a stable, crystalline white structure known as lyophilized peptide. The puffy white powder can be stored at room temperature until it is reconstituted with bacteriostatic water.
Storing vials on arrival
Once peptides have been received, it is imperative that they are kept cold and away from light. If the peptides will be used in the next several days, weeks or months, short-term refrigeration under 4°C (39°F) is generally acceptable. Lyophilized peptides are usually stable at room temperatures for several weeks or more, so if they will be utilized within weeks or months such storage is typically adequate.
For longer term storage (several months to years) it is more preferable to store peptides in a freezer at -80°C (-112°F). When storing peptides for months or even years, freezing is optimal in order to preserve the peptide’s stability.
After reconstitution
Once the peptides are reconstituted with bacteriostatic water, they must be stored in the fridge to maintain stability. After reconstitution, the peptides will remain stable for up to 30 days.
For laboratory research use only. Not for human or veterinary use.
99%+ — Passes ≥99% 
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