David P.
Independent Researcher
The CoA matched what I independently verified in my own assay. That's not something I've been able to say about most suppliers.

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A Thymosin-β4 fragment driving systemic actin-monomer turnover. Studied for tissue migration, angiogenesis, and systemic repair signaling.
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At your Door in 3-5 Days
David P.
Independent Researcher
The CoA matched what I independently verified in my own assay. That's not something I've been able to say about most suppliers.
Johanna M.
— Protocol researcher
Compound arrived lyophilized, correctly labeled, with a batch-specific CoA. Exactly what a research order should look like.
Edmund.
— Biochem researcher
I switched to Woosh after a competitor's purity claim didn't hold up to third-party testing.
Sarah C.
— Independent researcher
The research library is genuinely useful. Study citations, mechanism breakdowns — not just marketing copy.
Designation: RUO — Research Use Only. Not for human or veterinary use.
A Thymosin-β4 fragment driving systemic actin-monomer turnover. Studied for tissue migration, angiogenesis, and systemic repair signaling.
The Research Profile section below details the mechanisms and the literature that frames each.
Every vial ships with a Certificate of Analysis tied to its batch. Third-party verified at ≥99% purity by independent HPLC and mass-spec. Discreet packaging, cold-chain handling where required, at your door in 3–5 business days.
If your shipment is delayed, damaged, or fails CoA verification, we replace it — no questions asked.
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View cartResearchers often pair TB-500 with these compounds for multi-system protocols.
This peptide has been the subject of extensive preclinical investigation across multiple biological systems.
Key areas of research interest include the following.
Binds G-actin monomers and regulates their availability for F-actin assembly. Increases cytoskeletal plasticity during cell migration and wound closure.
Published cardiac-injury and ischemic-limb models show improved revascularization and capillary density with systemic TB-500 administration.
Accelerated closure rates in dermal wounds; improved biomechanical recovery in rodent tendon-transection models. Effect is additive with BPC-157.
Subcutaneous or intramuscular; systemic distribution is characteristic. Typical research protocols: 2–5 mg weekly for 4–6 weeks.
Every Woosh batch undergoes independent third-party testing. The CoA for this product is batch-specific — issued by the testing laboratory, not generated by Woosh.

RESEARCH GRADE . 99% PURITY
TB-500 RESEARCH
TB-500
TB-500
CAS NUMBER
77591-33-4
MOLECULAR FORMULA
C212H350N56O78S
MOLECULAR WEIGHT
4963.44 g/mol
PURITY
>99% HPLC
DESIGNATION
RUO . RESEARCH USE ONLY
Not for human or veterinary use
BATCH VERIFIED
Research Use Only
This product is strictly for in vitro research and laboratory use only. Not for human or veterinary consumption. By purchasing, you confirm use in a controlled research setting.
Every batch is independently tested via third-party HPLC and mass spec. The full Certificate of Analysis is published before purchase, verifying >99% purity.
A CoA documents the exact compound tested, its purity, and batch identifiers. It's the only independent proof that what's in the vial matches what's on the label.
These are research-grade compounds intended for laboratory study only. Not for human or veterinary use. All research protocols should follow your institution's guidelines.
Store lyophilized peptides at –20°C. Once reconstituted, keep at 2–8°C and use within 30 days for maximum stability.
Every Woosh shipment includes protection. Lost, damaged, or stolen orders are replaced or refunded with documentation.
Orders placed before 12pm ship same-day. Standard delivery is 3–5 business days within the US.
Start with our research library — mechanism breakdowns, study citations, and protocol references. Our team can also point you to peer-reviewed literature for any compound.
Yes — volume pricing is available for research labs, universities, and bulk orders. Contact us with your expected monthly volume for a custom quote.