You've seen "MIT" or "MIT %" listed on a kratom product. Maybe it was a number on a pack of capsules or stated on the back of a shot bottle. Either way, you're reading a label that assumes you already know what it means, which is a problem if nobody has ever told you.
MIT is shorthand for mitragynine, the prominent alkaloid in kratom and the compound responsible for most of what kratom does. The percentage next to it tells you how concentrated that compound is in the product you're holding. MIT is the short version. Knowing about this is worth understanding, because the difference between a 1.5% MIT capsule and a 45% MIT extract is the difference between an everyday serving and a product that needs to be respected.
What is Mitragynine?
Kratom comes from the leaves of Mitragyna speciosa, a tree native to Southeast Asia. The leaves contain more than 40 known alkaloids. Mitragynine is the most abundant of those, typically making up around 1% to 2% of the dry weight of raw leaf. Mitragynine is considered the most important kratom alkaloid, with other alkaloids playing a supportive role.
At lower amounts, mitragynine tends to feel stimulating and lifting. At higher amounts, it tends to feel grounded and calming. The same compound behaves differently depending on how much of it is in your system. That dose-dependent character is part of why kratom has been used so flexibly across cultures and why product manufacturers offer such a range of formats and strengths.
What "MIT %" on a Label Actually Tells You
When a product lists a MIT percentage, it's telling you what fraction of the product, by weight, is mitragynine. A 75mg full-spectrum capsule that's standardized to 1.5% MIT contains around 1.1mg of mitragynine. A 200mg extract tablet at 45% MIT contains 90mg of mitragynine. Those two products both have kratom in them, and the second has roughly 80 times the active material of the first.
This matters because the milligram weight on a kratom label, by itself, is meaningless. You can't compare a "75mg" capsule to a "100mg" extract without knowing how concentrated each is. The MIT percentage closes that gap. Reputable kratom brands publish this number on the label and back it up with a Certificate of Analysis showing the alkaloid content from independent lab testing. Brands that don't publish either are asking you to take their word for what's inside.
For a deeper dive into what differentiates the best kratom vendors, see our research blog: 7-Hydroxymitragynine Vendor Guide: Best Kratom Brands for High-Quality 7-OH
How MIT Concentration Varies by Product Type
The two factors that drive MIT % are the source material (raw leaf vs concentrated extract) and the manufacturing process (powder vs capsule vs tablet vs liquid). Here's how the most common formats compare in real terms.
|
Product type |
Typical MIT % range |
What it means in practice |
|
Raw kratom leaf or powder |
0.5% to 2% |
Whole-leaf material, full alkaloid spectrum, the baseline of the category |
|
Standardized leaf capsules |
1% to 2% |
Capsule-format powder with batch-tested consistency |
|
Kratom liquid shots |
Varies, listed in mg per bottle |
Pre-dosed for fast onset; total mitragynine ranges from around 75mg to 250mg per shot depending on the product |
|
Standardized kratom extract tablets |
30% to 60% |
Concentrated tablets where mitragynine is the headline active; servings are smaller |
|
Full-spectrum extract powder |
10% to 25% |
Concentrated but retains the full alkaloid profile of the source leaf |
|
Isolated mitragynine |
90% to 99% |
Single-alkaloid material, almost always sold as a wholesale ingredient rather than a finished product |
Standard leaves and capsules sit close together because capsules usually contain only powder in a shell. The wide range of shots reflects that "shot" is a format, not a strength. The big jump happens when you move into extracts, where the manufacturer is concentrating the alkaloid content on purpose.
This is exactly why Real Botanicals' new Acend Kratom Extract Tablet lists its mitragynine content prominently rather than relying on a generic milligram weight. With concentrated formats, the MIT number is the only number that lets you dose responsibly.
Related read: 7-OH Alternatives in 2026: What Experienced Users Are Switching To | Real Botanicals
Mitragynine vs 7-Hydroxymitragynine
You'll also see "7-OH" or "7-hydroxymitragynine" on labels, especially on advanced products. 7-OH is a different alkaloid, present at trace amounts in raw leaf (often less than 0.1%) but found at much higher concentrations in some specialty products. Mitragynine and 7-OH have related but distinct effect profiles, and the body also converts a portion of mitragynine into 7-OH after you take traditional kratom.
In practice, this means a high-MIT product and a high-7-OH product feel different even at similar serving sizes. If you want a deeper breakdown, our guide to the difference between mitragynine and 7-hydroxymitragynine covers the science.
The short take: MIT is your everyday workhorse alkaloid, and 7-OH is the concentrated, fast-acting one designed for experienced users. Most customers start with MIT products and only step into 7-OH after gaining a better understanding of what their bodies need.
Why MIT Concentration Should Drive Your Serving Size
Two products can have the same total weight and produce widely different experiences. A teaspoon of kratom leaf powder at 1.5% MIT delivers roughly 30mg of mitragynine. A teaspoon of full-spectrum extract powder at 20% MIT delivers around 400mg. Treating those as interchangeable is how new users have bad sessions.
Calculating the dose based on the MIT content, rather than the product’s total bulk weight, is the safer approach. Find your comfort zone in milligrams of mitragynine, then translate that to whatever format you're using. Most everyday kratom users land somewhere between 10mg and 50mg of mitragynine per serving. Experienced users may take higher doses, but tolerance builds over time, and chasing bigger doses usually backfires. Take rest days, stay hydrated, and focus on the milligram dose rather than the serving size.
For a thorough breakdown of how to dose specifically with extract formats, see our Kratom Extract vs Powder guide.
How Real Botanicals Handles MIT Standardization
Standardizing mitragynine content sounds simple. In practice, it requires sourcing leaves with consistent alkaloid profiles, a controlled extraction process, and verification testing on every batch. Real Botanicals built our ChromaPure extraction process specifically to isolate alkaloids cleanly from raw leaf material, which lets us put a labeled MIT content on a finished product and stand behind it. Every batch goes through third-party testing, and we publish the COAs.
The reason this matters is downstream. If your supplement company can't tell you how much of the active compound is in a serving, the responsible answer is to buy from a different supplement company. The whole point of standardization is that you can rely on consistency from one serving to the next and use it responsibly. That consistency is what makes responsible dosing possible.
For more information on the science behind proper kratom dosing guidelines, be sure to reference our dosage guides.
Frequently Asked Questions
Does a higher MIT percentage mean a better kratom product?
Higher MIT means more concentrated, not better. Whether you want a higher-MIT product depends on what you're trying to do. Experienced users often prefer concentrated extracts because they're easier to portion.
What's the difference between MIT and full spectrum?
MIT refers to the single alkaloid mitragynine. Full spectrum refers to a kratom product that retains the full set of alkaloids found in the source leaf, including supporting compounds like paynantheine and speciogynine. A full-spectrum extract can still have a labeled MIT percentage, which tells you how concentrated the headline alkaloid is within that broader profile.
How do I convert between leaf grams and MIT milligrams?
Multiply the gram weight of the leaf by the MIT percentage to get a rough mitragynine estimate. Five grams of 1.5% MIT leaf is around 75mg of mitragynine. The math is loose because alkaloid content varies between batches, which is another reason to lean toward standardized products where the manufacturer has done the testing for you.
Does kratom only contain mitragynine?
No. Kratom contains more than 40 alkaloids. Mitragynine is the most abundant by a wide margin, but supporting compounds like paynantheine, speciogynine, speciociliatine, plus 7-hydroxymitragynine also shape how kratom feels. Full-spectrum products preserve those supporting compounds. Isolated MIT or isolated 7-OH products do not.
Why don't some kratom products list MIT %?
Usually, because the manufacturer doesn't have the testing infrastructure to publish reliable numbers, or because the product is consistent enough that they prefer to communicate strength differently (such as a clear milligram count on a single-serving shot). Either way, asking the brand for a Certificate of Analysis is the right move. If they can't produce one, that's the answer to your question.
Is the MIT in extracts the same compound as MIT in leaf powder?
Yes. The molecule is identical. The only difference is concentration. An extract concentrates the mitragynine by separating it from the bulk plant material, but it’s still the same active compound your body responds to either way. See our complete kratom extracts guide for more details.
Disclaimer
This information is educational only. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult a healthcare provider before use.