Free shipping over $200
Xpresspost 1–2 business days
Orders before 4PM ET ship same day
≥98% purity — third-party tested
COA on every batch
Proudly Canadian
Free shipping over $200
Xpresspost 1–2 business days
Orders before 4PM ET ship same day
≥98% purity — third-party tested
COA on every batch
Proudly Canadian
GREYGEM was built for one type of person. The researcher who notices.
// Why GREYGEM Exists
Precision is the only thing that matters.
GREYGEM exists because precision matters. Not the kind of precision that reads well in marketing copy — the kind that gets caught in batch testing. The kind that shows up in molecular weight verification. The kind a researcher notices when they reconstitute a vial and the powder dissolves cleanly.
Every detail of this brand was designed for a single type of person: the researcher who notices. The one who reads the COA before the description. The one who cross-checks the molecular weight. The one who already knows what ≥98% purity should look like on a chromatogram.
If that's not you, this brand isn't for you. And that's fine.
We don't ask anyone to trust our word. We publish what the lab found.
// The Standard
No shortcuts. No compromises.
We don't trust supplier claims. We don't test our own products in-house. Every shipment we receive is independently retested by a Canadian third-party laboratory — before a single vial is released for sale.
The lab has no commercial interest in our results. They have one job: measure what's actually in the vial. We publish what they find — exactly as they find it. Every batch. Every product. Every time.
This is more expensive. It takes longer. It costs us margin. We do it anyway — because the alternative is asking you to trust our word.
// What Sets Us Apart
Built differently. On purpose.
01
Source Control
We source raw peptide material ourselves and oversee every step of packaging. No turnkey suppliers. No white-label shortcuts.
02
Independent Verification
Every batch is retested by a Canadian third-party laboratory. The COA on every vial is ours — not the supplier's.
03
Published Transparency
Every Certificate of Analysis is searchable and downloadable from our COA Library. No paywalls. No exceptions.
04
Canadian Standard
Researched, packaged, tested, and shipped from Canada. Same-day dispatch via Xpresspost. Discreet plain packaging.
// Begin
Refined for those who notice.
Explore the catalog. Verify the standard. Decide for yourself.