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What is Thymosin Alpha-1?
Thymosin Alpha-1 is a 28-amino-acid peptide originally isolated from the thymus gland. It is a well-studied immune-modulation research peptide with an extensive literature on T-cell signaling.
How Thymosin Alpha-1 works (research mechanism)
Thymosin Alpha-1 research focuses on modulation of T-cell maturation and innate immune signaling, making it a model compound for immune and antiviral research.
Primary research applications
Immune-modulation research
The central theme - T-cell and innate-immune signaling models.
Antiviral research
Studied in models of immune response to viral challenge.
Longevity / immune-aging research
Examined in immunosenescence designs.
Research dosing reference
Research references commonly cite 0.5-1 mg two to three times weekly. Reference values only.
Reconstitution & handling
Thymosin Alpha-1 ships as a lyophilized (freeze-dried) powder and must be reconstituted before use in any liquid research model. Allow the vial to reach room temperature, swab the stopper, then add bacteriostatic water slowly down the inside wall of the vial - never spray it directly onto the powder. Swirl gently until dissolved; do not shake, as shaking foams the solution and stresses the peptide. The volume of water you add sets the concentration: a 5 mg vial reconstituted with 2 mL yields 2,500 mcg/mL, so 0.1 mL measures 250 mcg. A correctly reconstituted Thymosin Alpha-1 solution is clear; discard if it is cloudy or shows particulate.
Storage & stability
Store un-reconstituted Thymosin Alpha-1 vials refrigerated and protected from light for long-term stability; the lyophilized form is robust and tolerates shipping. After reconstitution, refrigerate at 2-8C, keep away from light, and use within the typical research window of roughly two to four weeks. The benzyl alcohol in bacteriostatic water helps inhibit microbial growth across that period. Always label reconstituted vials with the concentration and date.
Common research pairings
Sometimes studied alongside Epithalon in immune-and-aging research designs.
How Thymosin Alpha-1 compares
Thymosin Alpha-1 targets immune signaling, distinguishing it from telomere-focused Epithalon and the structural healing peptides.
Safety & research considerations
Supplied for research use only and not for human consumption.
Sourcing, purity & Certificate of Analysis
Every lot of Thymosin Alpha-1 sold by Peptides Factory Direct is third-party tested to a 99%+ purity target, with identity confirmed by mass spectrometry and purity quantified by HPLC. A Certificate of Analysis (COA) documenting these results is available on request and ties each vial to a tracked lot. Material ships nationwide to all 50 US states with cold-chain handling where appropriate and fast domestic dispatch. This documentation is what separates research-grade Thymosin Alpha-1 from unverified material - quality is established before the vial ever reaches your lab.
Buy Thymosin Alpha-1 for research
Available research sizes:
How to order Thymosin Alpha-1 for research
Thymosin Alpha-1 can be ordered through the Peptides Factory Direct research portal as a one-time purchase or on a recurring research schedule (every 2 weeks, monthly, every 2 months, or every 3 months). Checkout requires confirming you are 21 or older, purchasing for laboratory research only, and that the product is not for human or animal consumption. Bulk and standing-order pricing is available - note it in your order. Open the order portal to view current research sizes and pricing.
Frequently asked questions
What is Thymosin Alpha-1 researched for?
Immune modulation, antiviral models, and immune-aging research via T-cell signaling. Research use only. Thymosin Alpha-1 is a 28-amino-acid peptide originally isolated from the thymus gland. Research applications include immune-modulation research, antiviral research and longevity / immune-aging research. Thymosin Alpha-1 is sold strictly for laboratory and in-vitro research use only; the research-grade material is not an FDA-approved drug product, not a supplement or food, and not for human or animal consumption.
What sizes are available?
5 mg and 10 mg vials, third-party tested, COA on request. Thymosin Alpha-1 is supplied as a lyophilized (freeze-dried) powder in 5 mg and 10 mg research sizes. A Certificate of Analysis tied to the tracked lot is available on request.
Is it for human use?
No - supplied strictly for laboratory research. Every lot of Thymosin Alpha-1 is third-party tested to a 99%+ purity target, with identity confirmed by mass spectrometry and purity quantified by HPLC. Orders ship nationwide to all 50 US states as stable lyophilized vials, with cold-chain handling where appropriate.
How should Thymosin Alpha-1 be stored?
Store un-reconstituted Thymosin Alpha-1 vials refrigerated and protected from light; the lyophilized powder is stable enough to tolerate shipping. Once reconstituted, keep the solution at 2-8C away from light, label it with concentration and date, and use it within roughly two to four weeks of research handling.
How is Thymosin Alpha-1 purity verified?
Thymosin Alpha-1 purity is verified by an independent third-party laboratory, not an in-house claim. Purity is quantified by HPLC against a 99%+ target and identity is confirmed by mass spectrometry, and the resulting Certificate of Analysis is tied to the tracked lot you receive and is available on request.
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External references: Peptides (Wikipedia) · U.S. Food and Drug Administration