Research without Compromise.
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Not all COAs are equal.
OP Labs runs a 14-point panel on every batch — far beyond a standard report.
| Parameter | OP Labs | Janoshik | Typical |
|---|---|---|---|
| Batch no. & date | ✓ | ✓ | ✓ |
| HPLC purity % | ✓ | ✓ | ✓ |
| Mass-spec ID (ESI-MS) | ✓ | ✓ | ✓ |
| Amino-acid sequence | ✓ | ✗ | ✗ |
| Water content (KF) | ✓ | ✗ | ✗ |
| Counter-ion / acetate | ✓ | ✗ | ✗ |
| Residual solvents (GC) | ✓ | ✗ | ✗ |
| Endotoxins (LAL) | ✓ | ✗ | ✗ |
| Bioburden (USP <61>) | ✓ | ✗ | ✗ |
A 14-point panel on every batch — more than a standard third-party report.
Why Choose OP Labs?
01) Our Price Promise
We supply directly from our lab and offer our customers a ‘price match’ promise.
02) Customer Support.
UK-based technical support providing responsive, personalised assistance throughout the ordering process.
03) Long Shelf Life.
A minimum two-year shelf life. All products are dispatched directly from our temperature-controlled storage facilities.
04) Compounding Services.
Bespoke peptide compounding services tailored to your precise specifications and research requirements.
05) Money Back Guarantee.
All purchases are covered by our simple, no-quibble refund policy. See here for further information.
06) Batch-Specific COAs.
Full 14 Point analysis is performed on all batches, with documentation available demonstrating typically ≥99% purity.
Over 90,000 satisfied
customers worldwide.
“Consistent batch quality, competitive pricing, and dependable supply enable reliable planning and repeat purchasing.”
“I highly recommend OP Labs. Support is responsive, knowledgeable, and a genuine pleasure to work with.”