Numbers that
hold up.
Your work deserves numbers you can stand behind. We test research peptides for identity, purity, content, sterility and endotoxin — results reported in full, certificates anyone can verify, and turnaround we guard as carefully as the data.
Five questions.
One certificate.
A purity figure on its own answers one question and quietly hides four others. Order any test alone, or the full panel on a single page.
Identity
UHPLC-UV · RT + spectral match
Retention time against a characterised standard plus UV spectral match scored out of 1000. Every component of a blend is confirmed on its own.
3–5 business days
- Retention time matched to a characterised reference standard
- UV spectral match scored out of 1000, specification ≥ 990
- Conforms / does not conform stated per component, never for the blend as a whole
- Reported alongside the chromatographic evidence it was drawn from
Purity
UHPLC-UV · DAD 214 nm
Area-percent purity, with peak purity checked across the peak so a co-eluting impurity cannot pass as product. Impurity peaks are reported, not swept up.
3–5 business days
- Area-percent purity by UHPLC-UV with diode array detection at 214 nm
- Peak purity assessed across the peak to detect co-elution
- Impurity peaks listed with retention time, area and area percent
- USP tailing factor and theoretical plate count reported for every peak
Content
6-level external standard
Net peptide in milligrams per vial against a six-level curve — what is in the vial, set against what the label claims.
3–5 business days
- Net peptide reported in milligrams per vial, per component
- Expressed as a percentage of labelled content
- Six-level external standard curve with R² and RSD printed on the certificate
- Identifies underfilled and overfilled vials, which purity alone cannot
Sterility
USP <71>
Abbreviated read at 48–72 hours, reported on an interim certificate, then full incubation to 14 days. The growth promotion control is reported, so the test’s capability is on the record.
14 days
- Abbreviated read at 48 hours for an early signal
- Interim certificate on the early read; the 14-day result is issued as a revision
- Growth promotion control reported, so the test is shown to have been capable of finding growth
- Requires an unopened vial — a punctured vial cannot be tested for sterility
Bacterial endotoxin
USP <85>
Run in replicate against a stated threshold in EU/mL. Both replicates appear on the certificate, not just the conclusion.
2–4 business days
- Run in replicate, with both replicate results printed
- Threshold stated in EU/mL on the face of the certificate
- Reported as a measured value against that threshold, not a bare pass
Search the catalogue.
Everything we test today, plus what we are bringing online next. The list is not exhaustive — if what you need is missing, ask.
Compounds marked Soon are being brought online and are not yet available to order. We also test more than is listed here and add compounds on request — if you don’t see yours, email the team and we’ll tell you whether we can run it now or add it.
A fast lab is one
that says no.
Every laboratory is quick at the start. Then it accepts everyone who asks, the queue outgrows the instrument time, and the two-week turnaround quietly becomes six. The certificate is still accurate. It is just late enough to be no use to the work it was meant to inform.
We run intake through our own client portal and take on a new client only when we can absorb their volume without moving anyone else’s dates. That is why there is an application here rather than a checkout — and why the turnaround figures on this page are the ones we actually work to.
Sound like the right kind of partner?
The application takes about two minutes. Once you’re approved, everything runs through the portal — pick your compounds and tests, see the price before you pay, ship with tracking, and download the certificate the moment it releases.
Everything we measured.
Not just the good part.
The easiest way to mislead with a lab report is omission. So we print the working, in a form another chemist can audit.
-
01
Per-component results
Every peptide in a blend gets its own line — identity, purity, retention time and net peptide in milligrams. Never averaged into a single flattering figure. -
02
The chromatogram, printed
With retention time, area percent, USP tailing and plate count for every peak. Impurity peaks included, named and numbered. -
03
Calibration and controls
Six-level external standard with R² and RSD on the face of the document. A pass means nothing without the control that proves the test could fail. -
04
Independently verifiable
A certificate number, QR code and verification hash tie the printed page to our record. Anyone holding the document can check it against our register without coming through you.
The judgement
behind the number.
Our chemists spent their careers on the other side of the certificate — preparing reference materials and running performance evaluation programmes, where a laboratory’s results are compared against every other laboratory in the round and the discrepancies are published.
That work teaches what running samples does not. A number without a stated uncertainty is an opinion. Standards get characterised rather than trusted. And a method has to survive being taken apart by a regulator, a client or a competitor — because eventually one of them will.
The year our senior chemists began their analytical careers.
Reference material preparation and performance evaluation in regulated environments.
Writing, running and auditing laboratory quality systems built to ISO requirements.