Independent peptide testing you can verify.
Know exactly what's in the vial. Guangdong Taiyuan Technology Group is a third-party peptide testing lab — identity, chromatographic purity, and net-peptide assay (mg/vial) by RP-HPLC-UV, delivered as a verifiable certificate of analysis.
Find a certificate.
Each COA carries a unique ID. Enter a certificate ID to find it in this site's server records. Try the bundled demo: DEMO-20260928-001.
✓ found · Sample Certificate — BPC-157 (DEMO)
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Quantitative analysis, built for what you actually sell.
Identity confirmation and purity quantification, run against certified reference standards and reported with the numbers behind them.
Peptide identity & purity
Confirm the compound and measure how much is actually present, by HPLC with diode-array detection.
- Identity vs. reference standard
- % purity + impurity profile
- Single or multi-analyte panels
Alkaloid quantification
Validated quantitative methods for plant alkaloids and converted actives, reported as mass and percent.
- Active mg per unit
- Multi-compound separation
- Batch-to-batch consistency
Method development
Need something off-menu? We'll develop and validate a method for a new compound or matrix.
- New analyte work-up
- SOP + validation package
- Reproducible, documented runs
Numbers you can stand behind.
Every result is generated under written SOPs on calibrated instrumentation — so a certificate means the same thing every time.
From sample to certificate in three steps.
Order & ship
Order online — pick your compounds and turnaround. We email shipping instructions right away; you mail the vials.
We test
Your samples are prepped and run under the validated method for that analyte, against reference standards.
Verifiable COA
You receive a signed certificate with the data and a unique ID your customers can look up. See a sample →
Transparent per-sample pricing.
Identity, purity, and net-peptide assay on every COA. No retainers, no minimums to start — bulk and recurring-program rates available.
- Identity + purity + assay (mg/vial)included
- Standard turnaround10–12 business days
- Signed, verifiable COAincluded
- 5+ samples · bulk rate$125 / sample
- 10+ samples · volume rate$100 / sample
Ongoing testing programs
Running regular batches? We set up standing intake, priority turnaround, and per-batch reporting tailored to your line.
Frequently asked questions
Do you sell peptides?
No. Guangdong Taiyuan Technology Group is an independent, third-party testing lab only — we don't sell peptides, so we have no incentive to report anything but what the instrument measured.
What do you test on each peptide?
Three numbers on every sample: identity (against a certified reference standard), chromatographic purity (area %), and net-peptide assay — the actual milligrams of peptide per vial, which most testing skips. More on purity vs. net-peptide content.
Do you run LC-MS / mass spec, sterility, or heavy-metals testing?
No. We're an RP-HPLC-UV lab and we say so plainly. We do not run mass-spec confirmation, sterility, endotoxin, or heavy-metals testing. See our scope and limitations.
How long does testing take?
Standard turnaround is 10–12 business days from when your sample arrives at our lab, with rush service down to 4 business days on orders up to 4 vials. Turnaround is measured from receipt — shipping is separate.
How much does it cost?
Per-sample pricing is $150, dropping to $125 at 5+ samples and $100 at 10+ — below the market leader. See full pricing. Every result is issued as a certificate anyone can look up.
Can I trust the certificate you issue?
Every COA carries a unique ID your customers can check in our lookup. See a sample COA.
Popular tests: Retatrutide · Tirzepatide · Semaglutide · Tesamorelin · BPC-157 — see all peptides we test, or read our testing guides.
Send us a sample. Get the real numbers.
Order online and get your testing plan on the spot — or email info@kmdanalytical.net for a custom quote.