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The ones who stopped getting burned all did the same homework. Here are the six things they check before every order, and how we measure up.
| Essence Bio Labs | Typical vendor | |
|---|---|---|
| CoA per lot | Published online, before purchase | On request, sometimes |
| Testing lab named | Yes, Freedom Diagnostics | Rarely |
| Method disclosed | HPLC, figure + date | "99%+" |
| Average batch purity | 99.6% | Unstated |
| Dispatch speed | Same-day, US-based | 2–5 days |
| Independent re-test | Encouraged, reimbursed if off-spec | No policy |
Most suppliers will send a Certificate of Analysis after you ask. Some send one from a different lot. A few send a sample document with the lot number cropped out.
We publish the assay for each lot online, so you read it before you decide, and every vial carries a lot number that maps straight back to its own document. If a supplier can't show you the paperwork until after your money's gone, you're not buying a tested product, you're buying a promise to have tested it.
Get codeAnyone can write "third-party tested." The claim only carries weight when you can look the laboratory up and see that it exists.
Our tests are run by Freedom Diagnostics, named on every document, with the method and date. Every CoA also carries a verification code: look it up yourself and confirm the document is real before you order.
Get code"99%+" is a marketing figure. An assay produces an actual result.
Our published lots read 99.63%, 99.87%, 99.85%. Those are the numbers the instrument returned. When a supplier only ever shows you a round number, it's because the round number came first.
Get codeThis is the one that separates suppliers who test from suppliers who say they test.
Send any Essence vial to an independent laboratory of your choosing. If the purity comes back below what our CoA states, we reimburse the cost of the test and refund the order.
We can offer that because we know what the assay says before you do.
See the guaranteeEvery manufacturer has batches that don't meet spec. The question is what they do next.
Ours don't ship. That's the entire policy, and it's the reason our published figures cluster where they do. You're seeing what passed, because what didn't never reached the shelf.
Get codeOverseas resellers can take two to four weeks, and you rarely know what conditions the vial travelled in along the way.
We're US-based and fulfilled stateside. Orders placed on a business day dispatch the same day, with tracking. You always know where it came from and where it's been.
Get codeVerified by HPLC on every batch, not a rounded marketing number.
Run by Freedom Diagnostics, with a verification code on every CoA so you can confirm it yourself.
Test any vial at your own lab. If it's below our CoA, we refund it.
Fulfilled and shipped stateside.
Out the door the same business day, with tracking.
People who can pull the actual batch record when you ask.
Take any Essence vial to an independent laboratory of your choosing. If the purity comes back below the figure on our Certificate of Analysis, we reimburse the cost of the test and refund the order in full.
No supplier offers that unless they already know what the assay says.
Get codePacked, verified, and out the door from the US the same business day. No account manager, no back and forth over email.
Full catalogue, live pricing, every lot's assay published. No quote requests, no minimum order.
Orders placed on business days ship the same day, with tracking.
Orders over $200 ship free.
Create your account and your first order is 30% off, no code to remember.