TB-500: public certificates of analysis
27 public certificates for TB-500 from 19 suppliers, opened without an account and recorded with lot, laboratory, date, purity and method. 27 more suppliers list TB-500 without a certificate we could open for it.
The issuing laboratories are Kovera Labs (5), Vanguard Laboratory (4), Janoshik (3), MZ Biolabs (2), UK-PEPTIDES.COM (2), Accumark Labs (1), Bioviridian (1) and Freedom Diagnostics (1); 8 documents name no laboratory. Methods printed: HPLC, HPLC+MS. Reported purity runs from 99.127% to 99.83% on the 11 documents that state one. Dates run from 2024-11-18 to 2026-10-01. We index what the supplier publishes; we do not verify documents with the laboratory. How to read a certificate · Lot-level vs sample testing.
Suppliers with a public TB-500 certificate
| Supplier | Score | Certificates | With lot | Laboratories | Newest | |
|---|---|---|---|---|---|---|
 Licensed Peptides | 84/100 | 2 | 2 | Vanguard Laboratory | — | Register |
 Paramount Peptides | 76/100 | 2 | 2 | Accumark Labs, Janoshik | 2026-07-08 | Register |
 Core Peptides | 74/100 | 2 | 2 | Vanguard Laboratory | 2026-07-22 | Register |
 Pure Peptide Labs | 74/100 | 2 | 2 | Kovera Labs | 2026-10-01 | Register |
 Biotech Peptides | 65/100 | 2 | 2 | MZ Biolabs | 2026-07-15 | Register |
 UK Peptides | 50/100 | 2 | 0 | UK-PEPTIDES.COM | — | Register |
 Geo Peptides | 48/100 | 2 | 0 | Not named | — | Register |
 Eternal Peptides | 22/100 | 2 | 0 | Kovera Labs | — | Register |
| Ascension Peptides | 77/100 | 1 | 1 | Kovera Labs | 2026-07-03 | Register |
 BioLongevity Labs | 72/100 | 1 | 1 | Not named | — | Register |
 Koi Peptides | 72/100 | 1 | 1 | Freedom Diagnostics | 2025-12-30 | Register |
 Evolve Peptides | 70/100 | 1 | 1 | Janoshik | 2024-11-18 | Register |
 Nexaph | 63/100 | 1 | 1 | Not named | 2026-08-09 | Register |
 Swiss Chems | 59/100 | 1 | 0 | Not named | 2026-09-04 | Register |
 Umbrella Labs | 59/100 | 1 | 0 | Not named | 2026-06-24 | Register |
 Loti Labs | 58/100 | 1 | 0 | Bioviridian | 2026-06-29 | Register |
 NuScience Peptides | 55/100 | 1 | 0 | Not named | 2025-02-06 | Register |
 Atomik Labz | 39/100 | 1 | 1 | Janoshik | 2025-11-10 | Register |
 Research Peptides | 32/100 | 1 | 0 | Not named | — | Register |
All 27 certificates
| Supplier | Product | Lot | Laboratory | Date | Purity | Method | Type | |
|---|---|---|---|---|---|---|---|---|
| Pure Peptide Labs | TB-500 | TB5319 | Kovera Labs | 2026-10-01 | 99.811% | — | Open | |
| Pure Peptide Labs | TB-500 | TB1317 | Kovera Labs | 2026-10-01 | 99.627% | — | Open | |
| Swiss Chems | TB-500 (Thymosin Beta-4) | — | Not named | 2026-09-04 | — | — | Open | |
| Nexaph | TB4 10mg | TB41008102026-15 | Not named | 2026-08-09 | — | — | page | Open |
| Core Peptides | TB-500 (Thymosin Beta 4) 5mg | C74179 | Vanguard Laboratory | 2026-07-22 | 99.8% | HPLC | Open | |
| Core Peptides | TB-500 (Thymosin Beta 4) 10mg | C74180 | Vanguard Laboratory | 2026-07-22 | 99.8% | HPLC | Open | |
| Biotech Peptides | TB-500 (Thymosin Beta-4) (5mg) | 3141081 | MZ Biolabs | 2026-07-15 | 99.72% | HPLC+MS | Open | |
| Biotech Peptides | TB-500 (Thymosin Beta-4) (10mg) | 3141080 | MZ Biolabs | 2026-07-15 | 99.83% | HPLC+MS | Open | |
| Paramount Peptides | Thymosin Beta 4 (TB500) (10mg) | 26VTBC164 | Accumark Labs | 2026-07-08 | — | — | image | Open |
| Ascension Peptides | TB-500 5mg | 31-05260628 | Kovera Labs | 2026-07-03 | — | — | page | Open |
| Loti Labs | TB-500 5mg | — | Bioviridian | 2026-06-29 | 99.8% | — | Open | |
| Umbrella Labs | Thymosin Beta 4 | — | Not named | 2026-06-24 | — | — | Open | |
| Paramount Peptides | Thymosin Beta 4 (TB500) (5mg) | TB45N030126 | Janoshik | 2026-04-17 | — | — | image | Open |
| Koi Peptides | TB-500 10mg | 2512290134 | Freedom Diagnostics | 2025-12-30 | 99.127% | HPLC+MS | Open | |
| Atomik Labz | TB-500 (Thymosin Beta-4) (43 AA) – 10mg | F1024F | Janoshik | 2025-11-10 | 99.671% | — | image | Open |
| NuScience Peptides | TB500 - 5mg | — | Not named | 2025-02-06 | — | — | Open | |
| Evolve Peptides | TB-500 5 mg | 52828 | Janoshik | 2024-11-18 | — | — | page | Open |
| BioLongevity Labs | TB-500 | 261476 | Not named | — | — | — | image | Open |
| Geo Peptides | TB-500 10mg | — | Not named | — | — | — | image | Open |
| Geo Peptides | TB-500 20mg | — | Not named | — | — | — | image | Open |
| Research Peptides | Thymosin Beta-4 (TB-500) 10mg | — | Not named | — | — | — | image | Open |
| Eternal Peptides | TB-500 5mg | — | Kovera Labs | — | — | — | page | Open |
| Eternal Peptides | TB-500 10mg | — | Kovera Labs | — | — | — | page | Open |
| UK Peptides | Thymosin Beta 4 5mg TB500 | — | UK-PEPTIDES.COM | — | 99.2% | HPLC | Open | |
| UK Peptides | Thymosin Beta 4 2mg (TB500) | — | UK-PEPTIDES.COM | — | 99.2% | HPLC | Open | |
| Licensed Peptides | TB-500 (Thymosin Beta-4) 10mg | V260123-1 | Vanguard Laboratory | — | — | HPLC | image | Open |
| Licensed Peptides | TB-500 (Thymosin Beta-4) 10mg (LAL endotoxin report) | V260123-1 | Vanguard Laboratory | — | — | — | image | Open |
Laboratory coverage for TB-500
Prices and the peptide page
The TB-500 page lists every supplier and listing with price per milligram; size comparisons: 2 mg (10 suppliers, median $33.99) · 5 mg (23 suppliers, median $46.98) · 10 mg (26 suppliers, median $68.50). COA database · Laboratories · Lot lookup.
Frequently asked questions
Which suppliers publish a certificate of analysis for TB-500?
19 suppliers in our index publish at least one public certificate for TB-500: Licensed Peptides (2), Paramount Peptides (2), Core Peptides (2), Pure Peptide Labs (2), Biotech Peptides (2), UK Peptides (2), Geo Peptides (2), Eternal Peptides (2) and others listed in the table. 27 further suppliers list TB-500 without a certificate we could open for it.
Which laboratories test TB-500 for these suppliers?
Kovera Labs (5 certificates, 3 suppliers); Vanguard Laboratory (4 certificates, 2 suppliers); Janoshik (3 certificates, 3 suppliers); MZ Biolabs (2 certificates, 1 supplier); UK-PEPTIDES.COM (2 certificates, 1 supplier); Accumark Labs (1 certificate, 1 supplier); Bioviridian (1 certificate, 1 supplier); Freedom Diagnostics (1 certificate, 1 supplier). 8 documents name no laboratory.
Are the TB-500 certificates lot-specific?
16 of the 27 certificates print a lot number, and the dates printed run from 2024-11-18 to 2026-10-01. A certificate without a lot number describes a sample, not the vial you receive; match the lot on the document to the label.
All listed materials are for laboratory research use only. A certificate describes the sample the laboratory received. Download the register (CSV) · Request a correction.