01
Every batch tested
No batch ships without a COA from our independent laboratory. New lot = new test. No reusing reports across batches.
Free Canada-wide shipping over $200 Lab-verified ≥99% purity on every batch Same-day shipping from Ontario Made & tested in Canada
Third-party verified · Every batch
Lab Testing & Certificates of Analysis
The COA is the most important document in research peptide procurement. Here’s exactly how ours are produced — and what they contain.
Our process
Three steps. No shortcuts.
01
Contract manufacture
Peptides are synthesised at a vetted contract manufacturing facility to ICH-aligned specifications. The manufacturer provides an in-process quality check, but their report is not the COA we publish.
02
Independent HPLC + MS analysis
Every batch is sent directly to an independent third-party analytical laboratory. The lab performs High-Performance Liquid Chromatography (HPLC) for purity and Electrospray Ionisation Mass Spectrometry (ESI-MS) for identity confirmation. We receive the COA directly from the lab.
03
Branded batch ID issued
Batches that pass our ≥99% threshold receive a CPS batch ID (format: CPS-YYMM-X). This ID is printed on every vial in the lot and appears on the published COA, product page, and your purchase record.
Sample COA
See what a real COA looks like.
Every COA we publish includes HPLC chromatogram, mass spec confirmation, net peptide content, and batch ID. Click to zoom.
Click image to open full size · Sample COA · CPS-2604-A
What’s tested
Five measurements. Every batch.
HPLC PURITY
≥99% threshold
Reverse-phase HPLC. Area% by UV at 214nm. Chromatogram embedded in COA. We publish the number and the trace — not just the number.
MASS SPEC
Identity confirmation
ESI-MS. Theoretical vs. observed molecular mass. [M+H]⁺ ion confirmed. A mismatch means the batch doesn’t ship.
PEPTIDE CONTENT
Net peptide content (NPC)
Actual peptide mass, corrected for water and counter-ion (TFA/acetate). Tells you how much active peptide is in your vial.
WATER CONTENT
Karl Fischer titration
Residual moisture measured via Karl Fischer — critical for hygroscopic peptides like TB-500 and for accurate NPC reporting.
ENDOTOXIN
LAL test · On request
Limulus Amoebocyte Lysate (LAL) endotoxin testing is available on request for clinic and wholesale accounts. Result in EU/mg vs. stated specification.
Available on request
Full analytical reports for clinic & wholesale buyers.
Beyond the standard COA, clinic program and wholesale accounts may request the complete analytical report from our testing laboratory. This includes raw instrument data, peak tables, and the lab director’s signed certification.
We provide this as standard — because it is the level of transparency that research procurement requires. No extra charge. Turnaround within 1–2 business days.
Lab partner statement
Independent. ICH-aligned. Confidential.
Our analytical partner is an accredited third-party laboratory operating under ICH-aligned analytical methods. Their identity is held confidential per our NDA, consistent with standard supplier confidentiality practice in the industry.
The laboratory has no financial relationship with Canada Peptide Supply beyond the testing fee — which means their results are not subject to commercial influence. COAs are issued directly from their reporting system.
Our commitments
Five commitments we make on every batch.
02
COA-on-demand
Request a COA for any current or recent batch at any time. We send it within one business day. COAs are published on product pages before the batch goes on sale.
03
Transparent batch IDs
Every vial carries the batch ID that matches the COA. You can trace any vial to its test result. This is the minimum standard — we treat it as non-negotiable.
04
No purity rounding
We report the actual HPLC result — 99.1%, 98.8%, whatever the instrument returned. We do not round up, report “≥99%”, or omit sub-threshold results from publication.
05
≥99% threshold
Batches that test below 99% HPLC purity do not go on sale. They are retested or rejected. This is a hard line, not a marketing claim.
Questions about COAs
COA FAQ
How do I read a COA? What do the numbers mean?
A COA contains three key data points: HPLC purity (what percent of the sample is the target compound), mass spec ID (confirmation that the compound matches its expected molecular weight), and net peptide content (how much actual peptide is in the vial after accounting for water and counter-ions). Our full guide is here: How to Read a Peptide COA.
Can I independently verify the COA?
Yes. Our COAs include the name and contact information of the issuing laboratory. You can email the lab directly with the batch ID and ask them to confirm the analysis was performed by their facility. This takes about five minutes and is the highest-confidence verification step available.
What does “research grade” mean exactly?
Research grade means the compound meets a defined analytical standard — in our case, ≥99% HPLC purity with mass spec identity confirmation — and is sold for in-vitro and non-human research purposes. It does not mean pharmaceutical grade (GMP), which involves a different regulatory and manufacturing framework. Research grade is the appropriate standard for laboratory research use.
How does batch tracking work?
Each production lot receives a CPS batch ID (e.g., CPS-2604-A). This ID is printed on every vial in the lot. When you receive your order, the batch ID on your vial should match the batch ID on the COA. Your purchase confirmation also records which batch was shipped, so you have a complete paper trail from manufacture to delivery.
What happens if a batch fails testing?
Batches that test below our ≥99% HPLC threshold do not go on sale. The batch is either retested (if the initial result is borderline or there is reason to suspect a testing error) or rejected entirely. We do not sell sub-threshold material at a discount or under a different category. It is disposed of.
Learn more
Read: How to Read a Peptide COA
A 14-minute field guide to every section of a real COA — what to check, what to ignore, and how to spot a fake.
Want a COA for a specific batch?
We send COAs within one business day.