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Quality & testing
Every batch is tested by an independent lab before it ships
Identity, purity and net content by LC-MS. Endotoxin by LAL. Results tied to the lot number printed on your vial and published on the product page, so what you receive is what the certificate describes.
110+certificates published
40+products with a live COA
>99%purity specification
≤ 0.5EU/mL endotoxin limit
Certificate of analysis
99.70%
Purity by LC-MS
- Lot · 20 mg
- SLIM20N
- Tested
- May 18, 2026
- Labeled
- 20 mg
- Measured
- 19.5 mg
LC-MS · BioRegenLAL endotoxin3 lots on record5 mg · 20 mg · 50 mg
View certificate
| Test | Method | Result | Status |
|---|---|---|---|
| Identity | LC-MS | Confirmed Semaglutide | PASS |
| Purity | LC-MS · spec >99% | 99.70% | PASS |
| Net content | LC-MS quantitation | 19.5 mg of 20 mg | PASS |
| Appearance | Visual | White lyophilized | REPORTED |
| Endotoxin | LAL (Endosafe PTS) | ≤ 0.05 EU/mL limit 0.5 | PASS |
What we test
Five checks on every released batch
Testing is carried out by BioRegen, an independent third-party laboratory, on samples drawn from the finished lot. These are the assays that appear on each certificate.
Identity
Mass spectrometry confirms the molecule is the compound on the label, matched against its formula and molecular weight.
LC-MS · must conform
Purity
LC-MS separates the peptide from any related impurities; the main peak is reported as a percentage of the total.
Spec >99%
Net content
Quantitation against the labelled amount, so a 10 mg vial is shown to contain at least 10 mg of peptide.
Measured vs labelled mg
Endotoxin
Kinetic chromogenic LAL assay on an Endosafe nexgen-PTS reader, with spike recovery and system suitability checks.
Limit ≤ 0.5 EU/mL
Appearance
Visual inspection of the lyophilized powder against the expected description for the compound.
Reported on every COA
How a batch is released
From synthesis to a published certificate
No batch is listed for sale until the lab report is back and tied to its lot number. The same number is printed on the vial you receive.
1
Synthesis and lyophilization
Peptides are synthesized and freeze-dried in US facilities, then assigned a lot number that follows the batch through every later step.Lot number printed on every vial
2
Samples go to the independent lab
Finished vials from the lot are sent to BioRegen. The lab receives a sample reference and a security key, so a report can be matched back to the lot it describes.Third-party, not in-house
3
LC-MS: identity, purity, net content
The sample is analysed by LC-MS. The chromatogram and mass spectrum are recorded, purity is calculated, and the amount of peptide is measured against the label.Chromatogram and spectrum kept with the report
4
LAL endotoxin screen
A kinetic chromogenic LAL test is run with spike recovery and suitability controls. Results are reported in EU/mL against a 0.5 EU/mL limit.Separate report, same lot number
5
Certificate published, batch released
Results are attached to the product page: the summary and pass/fail status are public, the full PDFs are available to signed-in researchers. Any result outside specification is shown as REVIEW rather than hidden.Tap any purity badge on the site to read it
Reading a certificate
What the numbers mean
Every certificate on the site follows the same layout, so you can compare lots at a glance.
- COA number and lot — the report ID from the lab and the lot printed on your vial. They should match.
- Purity — the main peak as a percentage of everything the detector saw. Our specification is greater than 99%.
- Net content — measured milligrams versus the label. The result is reported against the labeled amount.
- Endotoxin — EU/mL against the 0.5 EU/mL limit, with the assay’s own controls listed.
- PASS / REVIEW — a result inside specification is marked PASS. Anything outside it is marked REVIEW on the site, never removed.
Certificate of analysis
99.70%
Purity by LC-MS
- Lot · 20 mg
- SLIM20N
- Tested
- May 18, 2026
- Labeled
- 20 mg
- Measured
- 19.5 mg
LC-MS · BioRegenLAL endotoxin3 lots on record5 mg · 20 mg · 50 mg
View certificate
| Test | Method | Result | Status |
|---|---|---|---|
| Identity | LC-MS | Confirmed Semaglutide | PASS |
| Purity | LC-MS · spec >99% | 99.70% | PASS |
| Net content | LC-MS quantitation | 19.5 mg of 20 mg | PASS |
| Appearance | Visual | White lyophilized | REPORTED |
| Endotoxin | LAL (Endosafe PTS) | ≤ 0.05 EU/mL limit 0.5 | PASS |
Our requirements
What a batch must meet before it is listed
The same rules apply to every compound in the catalogue, whether it is a single vial or a Build a Box order.
Made in the USA
Synthesized and lyophilized in US facilities under documented quality procedures.
Independent testing
Every lot is analysed by a third-party laboratory, never only by the manufacturer.
Identity confirmed by mass spec
The molecule must match the label before purity is even considered.
Purity above 99%
Lots below specification are not released as conforming.
Endotoxin within limit
LAL result at or below 0.5 EU/mL with valid assay controls.
Traceable to your vial
Lot number on the vial, on the certificate and on the product page.
Latest results
The most recent certificates
Tap a purity badge to read the results without leaving the page.
View all products →
Questions
Testing, certificates and what to expect
Anything else? Our team can send the full report for any lot you have received.
Contact usWho runs the tests?
BioRegen, an independent third-party laboratory. Elivena does not issue its own certificates; every report carries the lab’s COA number, analyst and instrument.
Is every product tested, or just a sample?
Every lot is tested. Where a product has more than one lot on record, all of its certificates are listed on the product page with the newest marked LATEST.
How do I find the certificate for the vial I received?
Open the product page and compare the lot number on your vial with the lot on the certificate. Sign in to download the original PDF reports.
Why is purity measured by LC-MS?
LC-MS separates the sample and mass spectrometry confirms what each peak is. Together they give purity and identity from the same run, which is why both appear on one certificate.
What happens when a result is outside specification?
The result is marked REVIEW on the site rather than removed, so the record stays complete. A lot is only described as conforming when every assay on its certificate passes.
Are these products for human use?
No. Every product is supplied strictly for in-vitro laboratory research and is not for human or veterinary use.
Research with the report in hand
Every product page carries its certificate. Build a box of tested compounds and save up to 25%.