Available
Current COAs
Recent compound reports
5mg compound COAILS Laboratories LLC / 2026-08-18
Reports are matched to the compound named in the source PDF. They are not represented as documentation for the specific vial being purchased.
Peptides
Thymosin Beta-4
Lyophilized powder. Research use only.
$54per vial / 10mg
1
25% off orders of $250+. Calculated on merchandise before shipping and tax. No other discounts apply.
Free US shipping on $200+ orders. Not for human or animal use.
Review current compound reportsOverview
About Thymosin Beta-4
Lyophilized research compound supplied in a sealed glass vial with clean PeptideAmerica labeling. Sold strictly for in-vitro research.
This listing describes the product as supplied: its format, fill, and documentation status.
For Research Use Only. Not for human or animal use. Not for use in diagnostic procedures.
- Format
- Lyophilized powder
- Appearance
- White lyophilized cake
- Container
- Sealed glass vial, crimp cap
- Recent published report
- 99.08% · August 18, 2026
- Storage
- Store in a cool, dry place away from direct light.
Chemical identity
- CAS number
- 77591-33-4
- Molecular formula
- C212H350N56O78S
- Molecular weight
- 4963.44 g/mol
- Chemical designation
- Thymosin beta-4 (fragment)
TB-500 is commonly supplied as a fragment rather than full-length Thymosin beta-4. Confirm which species this lot contains before promoting to verified.
Pending verification — these identifiers are compiled from public reference data and have not yet been confirmed against source documentation. Do not rely on them as verified product specifications.
Questions before you order
When will my order ship?
Processing and carrier details are confirmed after order review. When a shipment is released, tracking is provided with the carrier update.
Is packaging discreet?
Contact support before submitting an order if your receiving location has specific packaging or labeling requirements.
What payment methods do you accept?
Checkout states whether payment is available or your submission is an unpaid order request. An order number does not confirm payment. Fulfillment starts only after payment is confirmed. Peptide America does not store card details in the storefront.
Are your products third-party tested?
Where a recent independent Certificate of Analysis is available for a compound, the original PDF is linked on the product page with its report date. A posted report is matched to the compound named in that document and is not represented as documentation for the specific vial being purchased.
How should the vials be stored?
Storage information for the material as supplied appears on its product page. Review any published compound documentation for additional handling notes. We do not provide reconstitution, preparation, or application guidance.
What is your policy if an order arrives damaged or does not match its documentation?
If an order arrives damaged or is lost in transit, contact support with the order number so the shipment can be reviewed under the published refund policy.
Do you ship internationally?
No. Checkout accepts eligible United States shipping addresses only. See the shipping policy for current terms.
Can you advise on how to use these materials?
No. These materials are supplied for laboratory research use only and are not for human or animal use. We cannot provide dosing, reconstitution, administration, or protocol guidance, and our staff cannot answer such questions through any channel.
