TB-500 10 mg
Retatrutide 20 mg, Pack of 5
BPC-157 10 mg
Third-party tested: HPLC-UV purity and LC-MS identity are reported on the Certificate of Analysis for the lot listed in the Specifications tab (see our COA page).
A pre-mixed lyophilized research material containing two peptides, BPC-157 and TB-500 (identified on the batch COA as BPC-157 and thymosin beta-4 by LC-MS), supplied for in vitro and analytical research.
Composition
The batch COA identifies this material by LC-MS as BPC-157 and thymosin beta-4, labeled 10 mg each per vial. Purity by HPLC-UV is reported on the batch COA. Reference values: BPC-157 (sequence GEPPPGKPADDAGLV) approx. 1419.5 g/mol; thymosin beta-4 approx. 4963 g/mol.
Composition and sequences
| Component | Label | Sequence (reference) | Reference MW |
|---|---|---|---|
| BPC-157 | 10 mg | GEPPPGKPADDAGLV (15 residues) |
approx. 1419.5 g/mol |
| Thymosin beta-4 (sold as TB-500) | 10 mg | Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES-OH (43 residues) |
approx. 4963 g/mol |
These are reference figures for each compound, not measurements of a particular lot.
Analytical documentation
- Purity (HPLC-UV): the posted COA (lot BB-20260521-01, Freedom Diagnostics, reported July 8, 2026) reports 99.15% for the sample tested.
- Identity (LC-MS): the COA lists a mass match for each component, BPC-157 and thymosin beta-4.
- Reading the blend result: the certificate reports one purity figure for the sample tested, and identity for each component. Read the purity figure as the lab defines it on the certificate. Our guide BPC-157, TB-500 and the 20 mg Blend: Specifications Compared sets out the specifications side by side.
- A COA reports results for the sample tested. It is not a guarantee for other lots.
Laboratory handling. Supplied as a lyophilized solid in a sealed vial. Handle it under your facility’s standard laboratory procedures and personal protective equipment. Handling is the responsibility of the qualified research facility.
Specifications
- Product
- BPC-157 / TB-500
- Label
- BPC-157 10 mg and TB-500 10 mg per vial, 20 mg total (measured net content for each batch is on the COA)
- Form
- Lyophilized powder
- BPC-157 CAS number
- 137525-51-0
- BPC-157 molecular formula
- C62H98N16O22
- BPC-157 molecular weight
- approx. 1419.5 g/mol
- BPC-157 sequence
- GEPPPGKPADDAGLV
- TB-500 identity (per COA, LC-MS)
- Thymosin beta-4
- TB-500 CAS number
- 77591-33-4
- TB-500 molecular formula
- C212H350N56O78S
- TB-500 molecular weight
- approx. 4963 g/mol
- Purity
- Reported on each batch COA. The posted COA (lot BB-20260521-01, Freedom Diagnostics, reported July 8, 2026) shows 99.15% by HPLC-UV, with identity confirmed by LC-MS. Verify this COA with the testing lab (opens third-party site)
- Storage
- Store lyophilized material in a cool, dry place, protected from light and moisture; refrigeration (about 4 °C) is recommended. Handling is the responsibility of the qualified research facility.
View the batch Certificate of Analysis on our COA page.
Also available: BPC-157 10 mg
Research FAQ
What is BPC-157 / TB-500 20 mg?
A pre-mixed lyophilized research material containing BPC-157 10 mg and TB-500 10 mg, supplied for in vitro and analytical research. For laboratory research use only.
What does BPC-157 / TB-500 20 mg contain?
Labeled BPC-157 10 mg and TB-500 10 mg per vial (20 mg total). Measured net content for each batch is on the COA.
What form is BPC-157 / TB-500 20 mg supplied in?
Lyophilized powder.
Does BPC-157 / TB-500 20 mg come with a COA?
Yes. The batch Certificate of Analysis is on our COA page.
How is the identity of BPC-157 / TB-500 20 mg confirmed?
The batch COA identifies the material by LC-MS as BPC-157 and thymosin beta-4.
How can I review the testing information for BPC-157 / TB-500 20 mg?
The batch Certificate of Analysis is on our COA page.
How should BPC-157 / TB-500 20 mg be handled and stored?
Store lyophilized material in a cool, dry place, protected from light and moisture; refrigeration (about 4 °C) is recommended. Handling is the responsibility of the qualified research facility.
Is BPC-157 / TB-500 20 mg for research use only?
Yes. It is sold for in vitro laboratory research only and is not for human or animal use.
Who can purchase BPC-157 / TB-500 20 mg?
Sold only to qualified researchers and research institutions.
Learn more
- LC-MS Identity Explained: What the Identity Result Confirms
- Research Peptide Glossary
- Peptide Sequence Notation: How Amino Acid Sequences Are Written
- BPC-157, TB-500 and the 20 mg Blend: Specifications Compared
Important notice
For in vitro laboratory research only. Not for human or animal use. Sold only to qualified researchers and research institutions. We may ask you to verify your organization before we ship, and we cancel and refund any order we believe is for personal use.
