Product Usage: For Research Use Only – Not for Human or Veterinary Use
This product is not a drug, food, cosmetic, or dietary supplement and has not been evaluated by the FDA. It is strictly intended for in vitro research by qualified professionals. Any use in humans or animals is strictly prohibited and may violate federal, state, or local laws, including the Federal Food, Drug, and Cosmetic Act. No therapeutic or diagnostic application is implied or permitted. The purchaser assumes all responsibility for compliance with applicable regulations.
TB-500 Capsules – 500mcg
500mcg oral capsules. TB-500 (Thymosin Beta-4) is a naturally occurring peptide studied in published preclinical research for its interaction with actin-regulation and cell-migration pathways. Supplied at research-grade purity for laboratory use only.
$200.00
Researchers who buy TB-500 Capsules research material are typically studying TB-500 (Thymosin Beta-4) in an encapsulated, oral-research-format preparation, for protocols where a non-injectable delivery format is the relevant experimental variable rather than a different compound. The compound itself — a synthetic version of Thymosin Beta-4, a 43-amino-acid protein first isolated from calf thymus tissue — is the same molecule supplied in this site’s lyophilized-vial preparation, and the published literature on its identity, mechanism, and research applications is identical regardless of delivery format. The summary below is provided strictly for research and educational reference — it does not describe an intended effect of this product in humans or animals.

What Is TB-500 (Thymosin Beta-4)?
TB-500 is the research designation for a synthetic version of Thymosin Beta-4 (Tβ4), a 43-amino-acid polypeptide first characterized as the primary actin-sequestering protein in mammalian cells. A full literature review — covering its proposed mechanism of action, chemical identity, published research applications, and what the human evidence shows (including the distinction between this research compound and RegeneRx’s separate pharmaceutical-development program) — is maintained on the primary product page: TB-500 (Thymosin Beta-4) – 10mg. Researchers evaluating this compound should consult that page for the complete citation record.
Why an Encapsulated Format?
This preparation supplies the same TB-500 research material in an oral-capsule format rather than a lyophilized vial requiring reconstitution. Researchers studying oral bioavailability and gastrointestinal-delivery questions specifically — as distinct from the parenteral/in vitro research designs that make up the bulk of the published Thymosin Beta-4 literature — are the typical audience for this format. The published literature on TB-500’s proposed mechanisms and preclinical research applications, cited in full on the vial-format page linked above, was generated using the routes of administration reported in each individual study; researchers should consult the original study methodology before assuming direct equivalence across delivery formats.
Purity, Storage & Quality
First Class Science supplies this TB-500 Capsules research material manufactured to the same research-grade purity standard as our lyophilized vial preparation, verified by independent third-party HPLC testing and mass spectrometry. A Certificate of Analysis is available for every batch at our Certificate of Analysis page.
Store capsules at room temperature, away from direct light, heat, and moisture, in a sealed container.
Important: This item is manufactured strictly for research purposes. It is not intended for human or veterinary use and is distributed solely for laboratory and scientific investigation.
Who Should Buy TB-500 Capsules Research Material
Researchers who buy this preparation from First Class Science are typically laboratories running comparative delivery-format research or protocols specifically requiring an oral-format research material. First Class Science requires that all research-material orders be placed by parties who acknowledge and agree to the research-use-only terms stated on this page prior to purchase.
Frequently Asked Questions
What is the purity of this TB-500 Capsules research material?
Every batch is independently verified via third-party HPLC and mass-spectrometry testing, with a Certificate of Analysis published for each lot.
How should TB-500 Capsules be stored?
Store at room temperature, away from direct light, heat, and moisture, in a sealed container.
Is this product approved for human or animal use?
No. TB-500/Thymosin Beta-4 is not an FDA-approved drug for any indication. It is sold exclusively for in vitro and laboratory research use.
Where can I find the full research literature on TB-500?
The complete literature review, including chemical identity, proposed mechanism of action, and published research applications, is maintained on the primary TB-500 (Thymosin Beta-4) – 10mg product page.
What does the Certificate of Analysis show?
The Certificate of Analysis published for each batch shows the HPLC purity result, mass-spectrometry molecular-weight confirmation, lot number, and test date.
Can this research material be shipped internationally?
Shipping availability and any import restrictions for research materials vary by destination country and are subject to change; researchers should confirm their local import regulations for research-use-only compounds before ordering.
Shipping, Handling & Compliance
This research material ships packaged to maintain stability in transit. All orders are subject to the research-use-only terms stated on this page, and First Class Science does not sell this or any other research material for human or veterinary administration under any circumstance.
Disclaimer: The research summarized on this site is drawn from third-party published studies. It is provided for research and educational reference only and does not describe an intended use, effect, or benefit of this product for any person or animal.
⊗ ALL ITEMS ARE SOLD FOR RESEARCH USE ONLY. This category covers strictly in vitro laboratory testing and scientific experimentation. Content on this site is for education only and does not authorize human or animal use of any kind, which is prohibited by law. Only trained, licensed professionals should handle these materials. Nothing sold here qualifies as a drug, food, or cosmetic, and none of it may be labeled, advertised, or used as such.
