Thymosin Alpha-1
Thymosin Alpha-1 (thymalfasin) is a synthetic 28-amino-acid peptide with an acetyl group at the start of the chain, supplied as a freeze-dried powder with a certificate of analysis for every batch. Buy research-grade Thymosin Alpha-1 (Tα1, also known as Thymalfasin / Zadaxin) in Costa Rica for ₡69,000 per 10mg vial. Transparent pricing, no customs fees, 2–4 day local delivery, and an automatic 15% discount when you order five or more vials.
Thymosin Alpha-1 Price in Costa Rica
Thymosin Alpha-1 is available in a single 10mg vial at Peptides Costa Rica:
- Thymosin Alpha-1 10mg — ₡68,172 (₡6,817.20 per mg)
With the 15% bulk discount on 5+ vials of the same product, the per-vial cost drops to ₡58,650 — a saving of ₡51,750 on a five-vial order (₡345,000 down to ₡293,250). For researchers comparing thymic peptide approaches, pairing Thymosin Alpha-1 with Thymalin (₡55,200/10mg) in a single order easily crosses the ₡92,000 free-shipping threshold and assembles a side-by-side immune research pair
Buy Thymosin Alpha-1 in Costa Rica: Research Grade & Lab Tested
Thymosin Alpha-1 (also abbreviated Tα1, with the international nonproprietary name Thymalfasin and pharmaceutical brand name Zadaxin) is a 28-amino-acid peptide derived from the larger prothymosin alpha protein found in the thymus gland. It has one of the most extensive clinical research and regulatory histories of any peptide in the research market — approved as a pharmaceutical for hepatitis B and C treatment in over 30 countries and studied in clinical trials for various immune-related conditions. It is supplied as a lyophilized powder in a 10mg vial requiring reconstitution before research use.
Thymosin Alpha-1 is priced at ₡68,172 per 10mg vial at Peptides Costa Rica. Every batch is independently lab tested and ships with a Certificate of Analysis available on request. Orders over ₡92,000 ship free anywhere in Costa Rica — pairing Thymosin Alpha-1 with Thymalin, BAC Water, or another product easily crosses that threshold. Ordering five or more vials triggers an automatic 15% bulk discount, bringing the per-vial cost down to ₡58,650 — a saving of $112.50 on a five-vial order.
How Thymosin Alpha-1 Is Identified
Sequence
Thymosin Alpha-1 is a chain of 28 amino acids: Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN. The "Ac" at the start means the first amino acid carries an acetyl group.
Formula, Weight and CAS Number
The molecular formula is C129H215N33O55, for a molecular weight of about 3,108 g/mol. The CAS number is 62304-98-7, and its international nonproprietary name is thymalfasin. These figures should match the certificate of analysis for your batch.
Origin
Thymosin Alpha-1 was first isolated in 1977 from a thymus tissue extract. It is the first 28 amino acids of a larger natural protein called prothymosin alpha. The version we supply is made synthetically, not extracted from tissue.
Not TB-4, Not Thymalin
Despite the similar names, Thymosin Alpha-1 is not related to thymosin beta-4 (sold here as TB-4), a different 43-amino-acid peptide. It is also not Thymalin, which is a mixture of polypeptides extracted from thymus tissue rather than one defined peptide. Each has its own product page, sequence or source description, and certificate.
Why Choose Peptides Costa Rica's Thymosin Alpha-1?
We specialize in supplying high-purity research peptides with a focus on transparency, fast domestic delivery, and dedicated customer support.
Thymosin Alpha-1 Research Overview
Thymosin Alpha-1 was first isolated in 1977 by researchers studying a protein-rich extract of thymus tissue, which is where the “thymosin” name comes from. Its sequence turned out to be the first 28 amino acids of prothymosin alpha, a larger protein found in many cell types, not only in the thymus.
Today it is made by chemical synthesis, which gives a single defined peptide with a fixed sequence, formula and weight. That makes it straightforward to identify: the sequence, the mass and the CAS number on this page should all match your batch certificate. We don’t summarize study findings on this page, and nothing here describes what Thymosin Alpha-1 does in the body. For the literature, start with PubChem and PubMed.
Get In Touch
Questions about pricing, the current batch certificate, stock or delivery inside Costa Rica? Our team is based here and answers by phone or WhatsApp. We can help with orders and documentation. We don’t provide dosing or usage guidance.
Why Researchers Choose Thymosin Alpha-1
Three different products in research supply have “thymosin” or “thymus” in their names, and they are easy to mix up. Researchers choose Thymosin Alpha-1 from us for its identification, documentation, and local supply
01
Defined Sequence
A fixed, published 28-residue sequence that can be checked against reference databases.
02
Full Chemical Detail
Sequence, formula, molecular weight and CAS number on this page.
03
Batch Documentation
A certificate of analysis for every batch, with purity result and test method.
04
Local Supply
Trusted Source for Research Peptides
We provide high-quality research compounds with a focus on purity, consistency, and transparency. All products are carefully sourced, reliably handled, and supported with fast delivery across Costa Rica.
Bulk Savings
Save more with bulk purchases. Buy five or more vials of the same product and get 15% off with clear, upfront pricing and no hidden conditions.
Simple Ordering Process
Place orders through a simple process—review products, confirm availability, choose your payment method, and arrange delivery within Costa Rica.
Flexible Payment Options
Choose from secure payment options including SINPE Móvil, Zelle, or cash for smooth and convenient transactions.
Transparency & Documentation
We provide Certificates of Analysis along with clear communication, verified stock, and straightforward pricing for complete trust.
Frequently Asked Questions
Thymosin Alpha-1, also known by its international name thymalfasin, is a synthetic peptide of 28 amino acids with an acetyl group at the start of the chain. Its formula is C129H215N33O55, its molecular weight is about 3,108 g/mol, and its CAS number is 62304-98-7. We supply it in Costa Rica as a 10 mg freeze-dried powder, independently tested for every batch, for laboratory research only.
They are different kinds of product despite the similar names. Thymosin Alpha-1 is one defined synthetic peptide with a fixed 28-amino-acid sequence. Thymalin is a mixture of polypeptides extracted from thymus tissue, with no single sequence or formula. Each ships with its own certificate of analysis, and each product page sets out how it is identified. We don't compare how they perform.
No. Thymosin beta-4, sold here as TB-4, is a separate 43-amino-acid peptide with a different sequence, formula and weight. The two share part of a name for historical reasons, since both were first found in thymus extracts, but they are not related in structure. Each has its own product page and certificate.
Store sealed vials of Thymosin Alpha-1 powder in a refrigerator at 2–8°C, protected from light and moisture. For longer storage, sealed vials can be kept frozen. Avoid repeated freezing and thawing. Keep each vial sealed in its original packaging until it's needed, and check the batch number and expiry date against the certificate of analysis when your order arrives.
Orders inside Costa Rica are typically delivered within 2–4 business days. Every package is tracked, and because we ship from local stock there are no customs delays or import fees. We don't ship outside Costa Rica.
