Canadian research peptides · independently tested
Canada’s most documented peptide source — 244 independent lab reports, a published purity floor of 93.844%, and domestic shipping.
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Growth Guys lab testing — last verified at checkout at Growth Guys (growthguys.com): October 11, 2026 (today), 15:31 ET — HEALTHYLIFE10 applied and working, taking $4.00 CAD off a $40.00 CAD cart, exactly 10% off sitewide, with no minimum purchase and no product exclusions, including HGH kits; 2 live-cart checks so far today.
Every published report counted and averaged, including the ones below 98%. Nobody else has computed the distribution.
| Cart subtotal | Discount | Paid | Rate |
|---|---|---|---|
| $125.00 CAD | −$12.50 CAD | $112.50 CAD | 10.0% |
| $70.00 CAD | −$7.00 CAD | $63.00 CAD | 10.0% |
| $100.00 CAD | −$10.00 CAD | $90.00 CAD | 10.0% |
| $90.00 CAD | −$9.00 CAD | $81.00 CAD | 10.0% |
| $70.00 CAD | −$7.00 CAD | $63.00 CAD | 10.0% |
Each row: one cart, built September 30, 2026, at a value chosen to differ from the others. A code with an undisclosed floor passes any single-value test, which is why this one varies. No order, no payment details — guest-cart figures only.
Add anything to the cart, enter HEALTHYLIFE10 in the discount field at the cart stage, and confirm the discount line changes before you continue. No account and no sign-in are needed; the code applies to a guest cart, and it is reusable, so it behaves the same on a second order as a first.
Across 133 distinct products Growth Guys has put 244 Janoshik reports on the record. 181 of them state a purity figure; those average 99.03%, with the lowest kept published at 93.844% and the highest at 99.99%. Keeping the low results visible is the part that makes the average mean anything. Domestic shipping within Canada, CAD pricing, no customs step. The full distribution.
As of the last full read on September 18, 2026, the vendor's lab-results page resolves to 236 individual reports from Janoshik Analytical, covering 132 distinct products. Of those, 175 carry a numeric purity figure; the remainder are identity or content tests that report a result without a percentage, which is normal for peptide mass-spec work and not a gap in the record.
The mean purity across those 175 is 99.03%. The range runs from 93.84% at the low end to 99.99% at the high end. Thirty-two reports — about one in five — come in under 98%. Those numbers are the whole set, not a selection from it.
A published set with no low results is a curated set. Purity assays on peptides do not all land in the same place: synthesis, purification and storage each move the number, and a catalogue of 132 products tested repeatedly will produce a distribution, not a flat line. When every published figure sits above 99%, the likeliest explanation is that the ones below it were not published.
Thirty-two results under 98% sitting on the vendor's own page is therefore the more useful signal, and it is the one most buyers skip past. It means the page is a record rather than a highlight reel, which is what makes the 99.03% mean worth anything in the first place.
Each report opens on Janoshik's own portal, under the lab's reference, naming the client and the batch. That is the part to check. A certificate hosted only as a PDF on a seller's own server carries no independent confirmation — the file can be edited by whoever serves it, and a number in a PDF proves nothing about the vial.
The practical test is to take the batch code from the product page, open the report from the lab's domain rather than the vendor's, and confirm the batch and client names match what you were shown. If a report will not resolve on the lab's own system, the purity figure attached to it should be treated as a claim rather than a result.
Batch codes in this set follow a short product-plus-number form — KPV04 and TB09 are typical. The code on the vial should match the code on the report, and the report's test date should precede the date the batch was listed. A report dated after the listing usually means the batch was tested retroactively, which is weaker evidence than a pre-listing test.
Where a product has been re-made, there will be several reports under the same product name with different batch codes. Those are separate results and should be read separately; an average across a product's history tells you about the vendor's process, while the specific batch code tells you about the vial in front of you.
Confirmed on October 10, 2026, when it reduced a $100.00 CAD cart by $10.00 CAD — exactly 10%. Every figure above comes from that run, and the date freezes rather than advances if a later run fails.
236 reports as of the last full read on September 18, 2026, covering 132 distinct products. 175 of them carry a numeric purity figure.
99.03% across the 175 reports that report a percentage, with a range of 93.84% to 99.99%. Thirty-two reports fall below 98% and are published alongside the rest.
Janoshik Analytical, an independent laboratory. The reports resolve on the lab's own portal under its reference rather than as PDFs hosted by the seller, which is what allows a buyer to confirm a report without relying on the vendor's copy of it.