Thymosin Alpha-1 (TA1)

Thymosin alpha-1 10mg (TA1) research vials

Thymosin alpha-1 10mg vials from Peptide Partners contain lyophilized TA1 peptide in a 3 mL-capacity vial, ready for laboratory reconstitution. The listing is sold in packs of 2, 5 or 10 vials, which means 20mg, 50mg or 100mg of peptide per order. Each pack is drawn from a single tested lot, so every vial in it shares the same certificate record, and the 3 mL vial leaves room for reconstitution in standard laboratory volumes.

What is TA-1 (thymosin alpha 1)?

Thymosin alpha 1, abbreviated TA-1 or TA1, is a 28-amino-acid peptide with an acetylated N-terminus. It was first isolated from a thymus extract known as thymosin fraction 5 and is derived from a larger precursor protein, prothymosin alpha. The synthetic version of the peptide is known as thymalfasin, the name most often used in the scientific literature. TA1 has been studied for decades in immunology research, particularly in work on T-cell maturation and on innate immune signalling pathways such as toll-like receptors. Because it is a well-characterised, relatively short peptide with a long publication record, it is also used as a reference compound when labs compare the behaviour of other immune and signalling peptides. Every thymosin alpha-1 10mg vial is sold strictly for that kind of in-vitro and laboratory work.

Thymosin alpha-1 price and pack options

Three pack sizes are available, all using the same thymosin alpha-1 10mg vial:

• 2 vials × 10mg = 20mg pack
• 5 vials × 10mg = 50mg pack
• 10 vials × 10mg = 100mg pack

The more vials in the pack, the lower the price per mg; live prices for each pack are shown above.

Buy thymosin alpha-1 with independent test records

Each lot of TA1 is independently tested by a third-party laboratory for heavy metals and purity, and the certificate records are published so you can check the lot before ordering. The specification table and the Certificates tab on this page hold the current results, and older lots remain searchable in the certificate ledger. Payment is taken via CashApp, Apple Pay, Chime or crypto, with details in our accepted payment options page, and free-shipping eligibility is calculated in the cart. Orders can be cancelled for a full refund at any point before they ship. Thymosin alpha-1 10mg packs ship from the US storefront, and you can add other lab-tested research peptides or reconstitution water to the same order.

Thymosin Alpha-1 (TA1) FAQ

What is TA-1?

TA-1, also written TA1, is thymosin alpha-1: a 28-amino-acid peptide with an acetylated N-terminus, originally isolated from thymus tissue. Its synthetic form is known as thymalfasin. It is studied in immunology research and is sold here in 10mg lyophilized vials for laboratory research use only.

Is thymosin alpha-1 the same as thymalfasin?

Thymalfasin is the name given to the synthetic form of thymosin alpha-1, with the same 28-residue sequence. The two names are used interchangeably in the research literature. This product is the synthetic peptide supplied as a lyophilized powder, listed with CAS number 62304-98-7.

Is thymosin alpha-1 related to TB-500?

Only by name. TB-500 is a fragment associated with thymosin beta-4, a different protein. Thymosin alpha-1 comes from prothymosin alpha and has an unrelated sequence. Both were first described from thymus extracts, which is why they share the thymosin label, but they are distinct research peptides.

What pack sizes are available for thymosin alpha-1 10mg?

TA1 is supplied in 10mg vials sold in packs of 2, 5 or 10, for 20mg, 50mg or 100mg of peptide. The price per mg is lowest on the 10-vial pack, and the live price for each option is shown at the top of the page.

What screening is done on each TA1 lot?

Each lot is sent to an independent third-party laboratory for heavy-metal and purity screening. The results for the current lot appear in the specification table and the Certificates tab, and every certificate can be found by batch ID on the independent certifications page.