| FILL | BATCH | PURITY | IDENTITY | ENDOTOXIN | STERILITY | CERTIFIED |
|---|---|---|---|---|---|---|
| 10 MG | BATCH-5138 | 99.338% | TB-500(TB-4) · confirmed | Pass | No Growth | 2026-08-05 |
NOT YET PUBLISHED: 5 MG · The certificate for the batch you receive is supplied with your shipment.
TB-500 10 MG · BATCH-5138
99.338% PURITY- PURITY
- 99.338% against a specification of > 98%
- NET CONTENT
- 10.42 mg (fill 10 MG)
- IDENTITY
- TB-500(TB-4), confirmed by LC-MS
- ENDOTOXIN
- Pass · limit ≤ 0.5 EU/mL
- STERILITY
- No Growth
- HEAVY METALS
- Arsenic Negative · Cadmium Negative · Lead Negative · Mercury Negative
- REPORT · ACCESS CODE
- KVR-2026-D9803D-S499 · 6RYBUAB
Reading a TB-500 certificate
Purity is measured by reverse-phase HPLC on a C18 column with detection at 214 nm — the trace shown under each batch above. The figure is the share of the signal in the TB-500 peak, and it is reported against the specification printed beside it.
Identity is confirmed separately by LC-MS, which checks the mass of what is in the vial against what is expected for TB-500. Purity without identity would say how clean the sample is, not what it is.
Net content is the measured quantity in the vial against its stated fill. Endotoxin is reported against its limit, sterility as growth or no growth, and heavy metals as a screen for arsenic, cadmium, lead, mercury.
Verify a batch yourself
Every certificate carries a Kovera Labs report number and access code, both published above. Enter them at koveralabs.com/verify and the laboratory returns its own copy of the record. Vials ship unlabeled, so the batch number for your order is on the certificate supplied with your shipment.
FREQUENTLY ASKED
4 ITEMSDoes TB-500 come with a certificate of analysis?
Yes. One batch of TB-500 has a published certificate, covering the 10 mg fill. The 5 mg fill does not have a published certificate yet; the certificate for each batch ships with the order.
What purity is TB-500 tested to?
The published batches were tested by reverse-phase HPLC against a purity specification of more than 98%. They returned 99.338%, reported at the precision the laboratory issued.
Who tests TB-500?
Kovera Labs, a third-party laboratory. Every certificate carries a Kovera Labs report number, and each batch is tested for purity, identity by LC-MS, net content, endotoxin, sterility, and heavy metals.
How do I verify a TB-500 certificate?
Enter the report number and access code printed on the certificate at koveralabs.com/verify. Both are published for every batch on this page. Vials ship unlabeled, so an order's batch number is on the certificate that ships with it.
TB-500, on the record.
1 BATCH PUBLISHED · SIX-PANEL TESTED · SAME-DAY FROM SOUTHERN CALIFORNIA
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