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THYMOSINALPHA-15 mg RUO

Thymosin Alpha-1

A master immune regulator, approved in 35+ countries as Zadaxin.

  • Promotes T-cell differentiation and activates NK cells
  • Modulates Th1/Th2 balance
  • CD4/CD8 ratio and NK counts are measurable endpoints
Studied for Immune regulationT-cell function
≥99% purity HPLC-tested Longevity
Size
$45per vial

Free shipping over $200 · $10 flat otherwise · ships cold from the USA

Full research summary5 citations

Thymosin alpha-1 is a master immune regulator: it promotes T-cell differentiation and activates dendritic cells, NK cells, and cytotoxic T-lymphocytes. It is approved in more than 35 countries as Zadaxin for hepatitis, cancer, and immune deficiency. It is not approved in the US.

  • Approved in 35+ countries as Zadaxin for hepatitis, cancer, and immune deficiency.researchdosing
  • Promotes T-cell differentiation and activates dendritic cells, NK cells, and cytotoxic T-lymphocytes.researchdosing
  • Modulates Th1/Th2 balance.researchdosing
  • Used clinically as an adjunct to antiviral therapy for chronic hepatitis B and C in countries where Zadaxin is approved; described as synergistic rather than antagonistic.researchdosing
  • CD4/CD8 ratio and NK counts are measurable endpoints; generally very well tolerated, with rare injection-site reactions.researchdosing

Storage & handling

Freeze-dried at -4F; in solution 36-46F and best used within roughly 3-4 weeks kept cold (structure-based estimate, no published data), or the 28-day sterility limit, whichever comes first.

Research cautions

Not approved in the US and placed on the FDA's 2023 503A "may not be compounded" list (verify current status); it is pharmacologically opposed to immunosuppressants and inappropriate during an active autoimmune flare.

Storage & handling

Freeze-dried at -4F; in solution 36-46F and best used within roughly 3-4 weeks kept cold (structure-based estimate, no published data), or the 28-day sterility limit, whichever comes first.

Research cautions

Not approved in the US and placed on the FDA's 2023 503A "may not be compounded" list (verify current status); it is pharmacologically opposed to immunosuppressants and inappropriate during an active autoimmune flare.

Shipping & payment

$10 flat-rate shipping, free on orders over $200, shipped within the USA only. Submitting an order requests a manual invoice — nothing is charged on this site, and payment details arrive by email. If tracking confirms a lost shipment we reship once at no charge; orders are not refundable once shipped.

This compound is supplied for laboratory research use only and is not for human or veterinary consumption. The research summarized here describes published third-party findings, not outcomes from Limitless Peptides, and is not dosing guidance or medical advice.

Commonly studied alongside

research pairings, not a protocol

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