How to Read a 7OH Certificate of Analysis (COA) Before You Buy

By the Limitless 7OH Team · Updated September 2026 · 7 min read · Buyer Guides

A Certificate of Analysis is the single most important document in the 7OH market — and the most ignored. It’s the difference between buying a verified 100mg tablet and buying a hopeful guess. This guide teaches you to read any 7OH COA in five minutes, spot the fakes, and verify the batch in your hand. Once you can do this, you’ll never buy blind again.

What a COA actually is

A COA is a lab report issued by an independent testing laboratory — not the seller — describing what a submitted sample contains. For 7-hydroxymitragynine products a proper COA covers three things: potency (how much 7OH is actually present), heavy metals (lead, cadmium, arsenic, mercury), and microbials (salmonella, E. coli, yeast and mold). If any of the three sections is missing, the COA is incomplete — treat the product as unverified.

Step 1: Match the batch

The first thing to check isn’t the numbers — it’s whether the COA matches your pouch. Look for the batch or lot number printed on the packaging and compare it to the sample description on the report. A brand selling thousands of packs under one old COA isn’t verifying your batch; it’s decorating its website. Every Limitless pouch carries a QR code that opens the COA for the exact production run inside — you can also email us for any current batch PDF before you order.

Step 2: Check the lab, not just the numbers

Legitimate COAs come from real laboratories with names, addresses, and accreditations (look for ISO/IEC 17025 accreditation). Google the lab. If the “lab” shares an address with the seller, or the report has no contactable lab identity at all, walk away.

Step 3: Read the potency line honestly

Find the 7-hydroxymitragynine result and do the math against the label. For a 100mg-per-tablet product, ten tablets should assay at roughly 1,000mg total, allowing small analytical variance (typically ±10%). A “100mg” tablet testing at 40–60mg is the most common fraud in this market — the price looks like a bargain until you compute what you’re actually paying per verified milligram.

Step 4: Screen the contaminants

Botanical-derived products can carry heavy metals from soil and microbials from handling. A pass/fail or measured-versus-limit column should accompany each. Note whether limits follow state requirements — several US states set specific kratom alkaloid limits. This is the section fly-by-night sellers skip, and the section that protects you most.

Step 5: Check the date

Testing older than roughly 12 months, or undated reports, are red flags — production should be recent enough that the tested run resembles what ships today. Our batches are dated on-pack, and each run ships only after its own passing report.

The 6 red flags of a fake or misleading COA

No batch/lot number, or one that doesn’t match the pack.
No laboratory identity or accreditation.
Potency listed only as a range (“50–150mg”).
Missing contaminant panels.
Undated or older than a year.
Can’t be produced when requested — always ask before you buy.

How Limitless COAs work

Every production run is sampled, sealed, and sent to an independent lab before packing. The passing COA is linked to that batch via the QR code printed on your pouch — alkaloid content, heavy metals, microbials. If a batch ever failed, it would never ship; it would be destroyed and re-produced. That’s the whole standard: if it isn’t lab-tested, it isn’t Limitless.

Use this on every brand — including us

COA literacy is your best protection in an unregulated-feeling market. Pair it with our 9-point online buying checklist, and for label math start with the strength guide. When you’re ready to buy from a brand that publishes batch COAs by default, browse the full Limitless 7OH shop.

Keep learning

Ready to shop? Browse Platinum 100mg tablets and Black Edition 50mg chewables — every batch third-party tested. 21+ only. Check your local laws before ordering.