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- Third-party assayed
- HPLC + LC-MS, every lot
- Batch-matched COA
- Published for every lot
- Cold-chain shipped
- Insulated & tracked
- US-fulfilled
- Synthesized & shipped in the US
Peptides
TB-500 (5mg)
Also known as Thymosin Beta-4 Fragment
99.771% assayed purityOur testing standards
Thymosin Beta-4 fragment. Lyophilized powder, 5mg per vial.
Out of stockTemporarily unavailable — check back soon.
- Ships same day
- Order by 2 PM CT, Mon–Fri
- 3–5 business days
- Standard · free over $300
- Cold-chain & tracked
- Insulated, tamper-evident, COA online
- Shipping protection
- Optional at checkout · $6.99 + 5%
For laboratory research use only. Not for human or animal consumption.
Specifications & details
A research peptide supplied as a lyophilized powder for laboratory study.
Peptide research
- Format
- Lyophilized powder
- Category
- Peptides
- Assay purity
- 99.771%
- Testing
- HPLC / LC-MS, COA per lot
- Origin
- US-synthesized & fulfilled
- Storage
- 2–8 °C sealed, away from light; 2–8 °C after reconstitution
- Reconstitution
- 1–3 mL Progression H2O (2.5 mg/mL at 2 mL)
Storage & reconstitution
Store lyophilized vials cold and away from light. Reconstitute with Progression H2O (sterile diluent) for research handling; keep refrigerated after reconstitution. Handle per your lab's standard procedures.
Testing & compliance
Independently assayed by HPLC / LC-MS with a certificate of analysis available per lot. Sold strictly for laboratory and research use only — not for human or animal consumption, and not a drug or supplement.
Independently tested
Certificate of analysis
- Testing laboratory
- Janoshik Analytical
- Certificate issued to
- HM Peptide
- Batch / lot
- 2026-02
- Analysis conducted
- 26 Jan 2026
| Analyte | Result |
|---|---|
| TB-500 (TB4)Content per vial | 5.41mg |
| PurityHPLC | 99.771% |
Verify this yourself
Check this report directly with the testing laboratory at janoshik.com/verify using the key below. We don't hold or control that record.
- Verification key4Y2TBBCVNW6C
Testing was performed by Janoshik Analytical, an independent third-party laboratory, on a sample submitted by HM Peptide, to whom the original certificate was issued. Progression Labs distributes material from the batch above and reproduces the laboratory's findings without alteration. Results relate only to the sample tested.
Customer reviews
Reviews from verified research orders appear here once approved.
Peptides
