Mitra9 vs Kaviva (2026): The Two Cans That Actually Print the Number

By the disclosed number, Kaviva is stronger: it states 300 mg of kavalactones per 12 oz can, versus Mitra9's 150 mg — double the stated dose. Both are real, printed figures, which is what makes them comparable; most kava seltzers won't disclose a number at all. The honest caveat is that both are stated rather than COA-verified — neither brand posts a public per-batch certificate of analysis confirming its figure — so the gap is between two disclosures, not two lab-proven doses. Also remember reverse tolerance: newcomers may feel little the first time regardless of the number, and 300 mg is a substantial serving worth respecting.

Kaviva, clearly. Because we can compute cost per 100 mg of kavalactones for both (both disclose a number), the math is direct: Kaviva's $59.98 twelve-pack at 300 mg per can works out to roughly $1.67 per 100 mg, while Mitra9's $74.99 twelve-pack at 150 mg per can is about $4.17 per 100 mg (its 24-pack at $144.95 is closer to $4.03). So Kaviva delivers double the stated dose at a lower pack price — more than twice the milligrams per dollar. Mitra9's value case is its leaner ~15-calorie recipe, not its cost per milligram.

Neither kava seltzer contains kratom — both are kava-only drinks. The difference is the brand around them. Kaviva is a pure-kava company; it sells no kratom at all. Mitra9 is a dual kava-AND-kratom brand: its kava seltzers are kava-only, but it also sells a separate line of kratom seltzers, kratom shots, kratom capsules, and kava-kratom "M9" combo shots. So with Mitra9 you must read the can — the kava cans say "Kava" and "500mg Kava Root Extract," while anything labeled mitragynine, kratom, or "M9" is a different product. With Kaviva there's no such homework.

Mitra9, by a clear margin: its kava seltzers run roughly 15 calories per can, versus Kaviva's roughly 50. Both avoid artificial sweeteners — Kaviva uses monk fruit, stevia, and real fruit juice; Mitra9 says it uses no artificial sweeteners — so this is a calorie difference, not a sweetener-quality one. If a low calorie count is your priority, Mitra9 is the leaner pour. If you'd rather have the bigger disclosed dose and don't mind the extra calories, Kaviva.

Not a public per-batch one that we could find for either. Both print a kavalactone number — Mitra9 references a COA program and lab testing, and Kaviva states premium noble kava and 300 mg per can — but neither posts a downloadable certificate of analysis for the specific batch in your hand, and neither names a country of origin (Mitra9 says "South Pacific," Kaviva says "responsibly sourced"). So both clear the disclosure bar by printing a figure, but both sit a rung below the brands that back the number with a verifiable per-batch sheet. A posted COA from either would settle the strength claim outright.

It splits by what you optimize for. Buy Kaviva if you want the biggest stated dose (300 mg), the best value per milligram (~$1.67 per 100 mg), and a pure-kava brand with no kratom confusion — that's the pick for most drinkers shopping these two on the merits. Buy Mitra9 if you want the leanest-calorie can (~15 cal) and a more moderate 150 mg dose, and you're comfortable reading the label every time to avoid its kratom SKUs. Both actually disclose their number, which already puts this pair ahead of most kava seltzers.

No. This is not a paid placement, and neither Mitra9 nor Kaviva sponsored or reviewed it. Kava Review has no affiliate relationship with either brand at publication — we earn no commission if you buy, and the verdict reflects our standard, not a payment. We verified every fact against both brands' own product pages, ingredient panels, and Amazon listings in June 2026, and where we couldn't verify something (a per-batch COA, a named origin) we said so rather than papering over it.