The number printed largest on a kratom pack is the one a brand most wants you to see. It’s also the one you can least afford to take on trust. Strength labels in this category mix units and name different alkaloids. Some describe products that don’t match their own lab reports. If you’re an adult who already buys these products, or you’re researching brands for a store, the six comparisons below will tell you more than any headline figure. My take: the best 7-OH brand is the one whose label still holds up after you check it, not the one with the biggest number.
Why are strength labels under closer scrutiny in late 2026?
Because a label’s numbers may soon decide a product’s legal status. HHS has proposed two tests, and per the Justice Department’s October 9, 2026 announcement, the DEA will put out a fresh notice of intent built on that updated science, opening a fresh 30-day period. The first test is concentration. A solid product would be Schedule I if its individual or combined 7-OH and MGPI (mitragynine pseudoindoxyl) content tops 1 mg per gram, and liquids face the same test per mL. The second is balance, where a mitragynine-to-7-OH (or MGPI) ratio under 100 to 1 would also qualify. Neither test is final, and 7-OH still has no temporary scheduling order from the DEA.
MGPI is a different story. It has been under temporary Schedule I control since August 26, 2026. MGM-15 and MGM-16 have been there just as long. NCCIH notes that kratom itself isn’t on the federal schedules. The FDA hasn’t signed off on any kratom drug product, and its advice to consumers is to stay away from kratom entirely. It lists liver toxicity as one risk and substance use disorder as another. None of that changes what’s inside a pack. It does change which label numbers deserve your attention.
1. The unit behind the number decides what it means
A bare milligram figure tells you nothing until you know what it’s per. A tablet label may state milligrams per tablet. A powder or extract label may give a percentage by weight. A liquid label may use milligrams per milliliter. Because the proposed federal test is written per gram for solids, per gram is the unit to convert solid products to.
The conversions never change. A percentage times 10 gives milligrams per gram, so 2% is 20 mg/g, and a lab may print that same value as 20,000 ppm. The proposed line of 1 mg/g therefore equals 0.1%, which is 1,000 ppm. For a per-tablet figure, divide by the tablet’s weight in grams. Half a gram per tablet means the per-gram number is double the per-tablet one. If a brand doesn’t print the tablet weight, the conversion is impossible. When you’re reading through 7-OH tablets listed by brand on a retailer’s category page, note which brands give you both numbers and which give you only one. That single column sorts brands faster than any marketing copy.
2. A strength claim should name the alkaloid it measures
“Extra strength” isn’t a measurement. Neither is “total alkaloids” if the label never breaks that total down. Because the proposed tests handle mitragynine and 7-OH differently, a useful label gives each its own line.
Some background explains the split. In natural leaf, 7-OH is a minor component: the FDA puts it below 2% of the leaf’s alkaloids, and HHS calls its natural levels relatively low. Packaged products can look very different. DEA lab work, cited in the agency’s July 2026 release, found that commercial products often hold more 7-OH than botanical kratom does naturally. And the FDA flagged a labeling problem back in July 2025. Its recommendation to schedule certain 7-OH products cautioned that they “may not be clearly or accurately labeled as to their 7-OH content.” A brand that gives each alkaloid a figure is making a claim you can test. A brand that prints “potent” isn’t.
3. The mitragynine-to-7-OH ratio now has a proposed cutoff
Most shoppers skip this comparison. But HHS made it one of its two proposed tests. A product with a mitragynine-to-7-OH ratio under 100 to 1 would fail it even if its per-gram figure stayed under 1 mg, since either test on its own would be enough. MGPI counts toward the ratio as well.
To check, put both alkaloids in the same unit and divide mitragynine by 7-OH. At 100 or above, the product clears the proposed ratio. Below 100, it doesn’t. If a label lists only 7-OH, the label alone can’t answer the question, and you’ll need the lab report instead.
4. The lab report has to match the batch in your hand
A certificate of analysis speaks only for the sample a lab received. Compare the lot or batch number on the report with the one on the package, and check the test date. A brand that posts one report for every batch is showing you a sample, not your product.
Look at who ran the test. The accreditation to look for is ISO/IEC 17025, and a credible report names its lab instead of just carrying a logo. Then read the results column slowly. An “ND” entry (not detected) tells you only that the amount sat under the lab’s detection limit. It doesn’t mean zero. So two brands showing “ND” for one compound may have used labs with very different limits, and a good report states the limit it worked to.
5. The analyte list shows what the lab actually looked for
A tidy report can still be incomplete. A panel that stops at mitragynine and 7-OH is silent on MGPI and MGM-15, and federal law already lists both in temporary Schedule I. That silence matters. CFSRE’s forensic testing has picked up MGM-15 in products whose brand and blend names vary widely. Cayman Chemical’s snapshot on these compounds adds that mitragynine pulled from the leaf can be converted into 7-OH in a lab. So the word “kratom” on a pack doesn’t tell you how the contents were made.
Utah shows what mislabeling looks like in practice. Utah’s agriculture department and poison control center issued a July 30, 2026 warning that told consumers to avoid buying or using Buzzers-brand Cat’s Claw tablets. Testing by the state turned up mitragynine pseudoindoxyl and MGM-15. Nothing on a cat’s claw label pointed to kratom alkaloids. Only testing showed what was inside.
6. Ingredient lists and age statements belong on the label too
Strength is one line on a label. The rest of it matters just as much. Two states have written this into law: a 2023 CRS legal sidebar found that Georgia and Oklahoma require ingredient lists giving common names. A full ingredient list lets you see what else is in a tablet or capsule besides the stated alkaloids. Check for a 21+ statement too, and confirm the seller runs an age gate before checkout.
State law is the other half of this item. In Tennessee, kratom has been illegal statewide since July 1, 2026. In California, the state health department declared in May 2026 that manufacturing or selling kratom and 7-OH products for consumption is against state law. Utah’s rules ban 7-OH above state limits and any synthetic kratom-derived compound. By LAPPA’s January 2026 tally, kratom faces some kind of regulation in 30 states and DC. An accurate label can still describe a product you can’t legally buy where you live.
How do you turn these six checks into a brand comparison?
Score brands, not single products. Start from a brand directory that lists the best-known 7-OH brands. Then open two or three product pages for each one. Record the same nine fields every time: unit and unit weight, per-gram figure, named alkaloids, mitragynine-to-7-OH ratio, batch-matched lab report, accredited lab, analyte panel, ingredient list and age statement. Brands that fill every field across several products are telling you something about how they operate. Brands that offer a headline number and a logo are telling you something too.
There’s a trade-off. This takes time, and some careful brands post their reports in hard-to-find places, so a blank field may mean a missing link rather than a missing test. Ask the brand before you rule it out. And read the federal numbers as provisional. If the DEA’s new notice changes them, you’ll need a second pass on the per-gram and ratio columns in your notes. The batch and lab checks stay exactly as useful as they are today.
