- Independently HPLC-tested — ≥99% purity
- COA for every batch, emailed with your delivery
- Discreet, tracked worldwide shipping
- Dispatched from the EU and Bali
TB-500 is a synthetic peptide research material associated with the thymosin beta-4 family. Depending on the supplier and reference standard, the commercial name TB-500 may refer to a specific thymosin beta-4-related fragment, salt form, or peptide preparation rather than the complete 43-amino-acid thymosin beta-4 molecule.
For this reason, TB-500 should not automatically be described as full-length thymosin beta-4 or as a 42-amino-acid peptide. Product identity, amino-acid sequence, molecular form, purity, and composition should be established through batch-specific analytical documentation.
Full research description
In controlled laboratory environments, thymosin beta-4-related peptides may be investigated in connection with actin binding, cytoskeletal organization, cellular migration, peptide stability, angiogenesis-related pathways, extracellular-matrix activity, and experimental cellular-response models.
Published findings involving tissue repair, wound models, blood-vessel formation, inflammation, cardiac tissue, skeletal muscle, glucose regulation, or other physiological processes are primarily derived from laboratory, animal, or investigational research. These findings do not establish the safety, efficacy, dosage, or suitability of TB-500 for use in humans or animals.
References to healing injuries, protecting cardiac tissue, restoring muscle, reducing fibrosis, controlling blood glucose, treating ulcers, or improving human medical conditions have been omitted because such statements could imply therapeutic use or drug efficacy.
FDA has stated that TB-500-related substances may present potential immunogenicity and impurity-related concerns and that the available information is insufficient to establish safety for human administration. FDA has also identified thymosin beta-4 products marketed for human use as unapproved new drugs and biological products.
This research material is not represented as an FDA-approved drug, biological product, medicine, treatment, or pharmaceutical ingredient suitable for administration.
Storage & handling
Before reconstitution. Keep the sealed vial cool and dark. Lyophilized peptides are stable this way for the period stated on the certificate.
Reconstitution. Add bacteriostatic water slowly against the inside wall of the vial. Swirl gently to dissolve — never shake, as agitation can damage the peptide chain.
After reconstitution. Store refrigerated and use within the window appropriate for the compound under study. Do not freeze once in solution.
Check that the batch code on the label matches your packing slip on arrival.
COA & testing
Every batch is analysed by an independent laboratory before it is listed. The method for this compound is HPLC-UV 214nm.
The certificate shows the main peak purity, the impurity profile, the test date and the laboratory that performed it — tied to the batch code printed on your vial.
Batch for this listing: SP-TB5-2608A. Look it up here.
Shipping & discretion
Orders placed on business days are dispatched the same or next day. We ship multiple times a day, so most orders leave within six hours.
Plain box, neutral sender, no product names or branding on the outside. Tracked worldwide.
Free shipping from €175 in the Netherlands and Belgium, €180 in the rest of Europe and €225 worldwide — and always free on Bali. See the delivery page for rates and times per region.
Research use only
FOR LABORATORY RESEARCH USE ONLY.
For use only by qualified laboratory professionals in controlled research environments.
Not for human or veterinary use.
Not for human consumption.
Not intended for injection, ingestion, inhalation, topical application, or administration to humans or animals.
Not intended for clinical, diagnostic, therapeutic, preventive, nutritional, cosmetic, body-composition, athletic-performance, or household use.
Not intended for pharmaceutical compounding or for the preparation of any product intended for human or animal administration.
This product is not intended to diagnose, treat, cure, mitigate, or prevent any disease or medical condition, nor is it intended to affect the structure or function of the human or animal body.
This product has not been evaluated or approved by the U.S. Food and Drug Administration.
Handle, store, and dispose of this material in accordance with applicable laboratory safety procedures and all relevant federal, state, and local requirements.
Laboratory analysis
Batch SP-TB5-2608A
Repair Stack
This compound is part of a curated protocol. The stack works out cheaper than the vials separately — and ships with free BAC Water.

