Lab reports. Read them.
A certificate of analysis is the only thing standing between you and a vial that's 60% filler. Here's how to read one in two minutes.
Not sure what to order? Text us at (559) 939-5274 — a real person answers, fast.
Where ZestyRat's results live
Batch test results are published on the vendor's site and referenced from product pages. If a listing you're looking at has none, ask before you buy — a real vendor will send it.
The three numbers that matter
- Purity (HPLC): the percentage of the sample that is the stated compound. 99%+ is the bar.
- Identity (mass spec): confirms the molecule is what the label says. Purity without identity is meaningless.
- Net content: the actual milligrams in the vial versus the label.
Red flags
- A COA with no lab name, no batch number, or no date.
- A purity number with no method listed.
- One COA reused across every product on a site.
- Vendor-run testing presented as independent.
Every compound page on this site links to the exact ZestyRat product so you can cross-check the batch before you check out.
Frequently asked
What does 99%+ purity mean?
At least 99% of the sample, by HPLC, is the stated compound. The remainder is typically water, counter-ions and trace synthesis by-products.
Is third-party testing really independent?
Independent means a lab the vendor doesn't own. Ask for the lab name on the report.
Not sure what to order? Text us at (559) 939-5274 — a real person answers, fast.