Every batch tested. Every result published. Nothing to hide.
In the peptide market, inflated purity claims and fabricated COAs are widespread. Many sellers claim "99% purity" without ever providing verifiable proof. At Noyawell, we chose a different path.
"We don't just claim purity — we prove it. Every batch. Every time."
Our quality commitment rests on three pillars:
All COAs issued by independent third-party laboratories — never in-house.
Every product has a unique batch number linked to its specific COA report.
No hidden data, no blurred results. Complete transparency on every metric.
If any batch fails to meet ≥99% purity standard, that batch is rejected and never released.
All raw materials undergo supplier qualification and incoming inspection: Identity confirmation, purity analysis, impurity profiling. Non-conforming materials are rejected immediately.
Solid-phase peptide synthesis (SPPS) using Fmoc chemistry. Multi-step purification including preparative HPLC. All critical process parameters are monitored and recorded in real time.
High-precision HPLC (High-Performance Liquid Chromatography) purity analysis. Dual wavelength detection at 214nm and 254nm. Purity threshold: main peak area ≥99%.
Endotoxin testing, moisture content (Karl Fischer), visual inspection, microbial limits, mass spectrometry confirmation. Every test must pass before release.
All tests passed → COA signed → Unique batch number assigned → Product released. COA uploaded to website for customer access. Batch history archived for traceability.
A COA can look complex — but you only need to check a few key data points.
Must match the product you purchased exactly.
Should match the number on your product label.
The most important number: must be ≥99%.
Confirms the molecular weight matches the expected compound.
Lower is better. Must be within safe limits.
Must read "Pass" or "Complies" with analyst signature and date.
Select a product to view its latest Certificate of Analysis
We don't rely on in-house testing. All COAs are issued by independent third-party analytical laboratories. We encourage every customer to send our products for independent testing.
💡 Our Guarantee: If third-party testing of our products shows results significantly different from our published COA, we cover the testing costs and provide a full refund.
Medical Devices Quality Management System. Certificates verifiable through issuing body.
Download Certificate →Good Manufacturing Practice compliance. Manufacturing processes meet international standards.
Download Certificate →Every COA includes the issuing laboratory's credentials and can be independently verified. We encourage customers to contact the testing lab directly with the COA reference number.
Absolutely. We encourage independent verification. If your lab's results differ significantly from our published COA, we cover your testing costs and provide a full refund.
Every single batch is tested. Not random sampling — 100% of production batches undergo full quality control testing before release.
We guarantee ≥99% purity by HPLC for every product. If any batch tests below this threshold, it is rejected and never released.
Quality you can verify. Transparency you can trust.