Kanna Extract Explained: How Concentrated Sceletium Is Made
I’ll be honest — the first time I came across kanna, I had no idea what I was looking at. A friend handed me a small amber bottle and said, “Try this. It’s a plant from South Africa. People have been using it for centuries.” That was enough to get me curious.
Fast forward a few months, and I’ve gone deep down the rabbit hole. I’ve read the ethnobotany papers, spoken to formulators, and yes — tried it myself. What I find most fascinating isn’t just the plant itself, but what happens between harvest and bottle. How does a succulent shrub from the Karoo desert end up as a concentrated extract? That’s what I want to walk you through today.
First, a little background on the plant itself
Sceletium tortuosum — commonly called kanna — is a low-growing succulent native to South Africa. The San and Khoikhoi peoples have used it for thousands of years, primarily as a mood-lifter, a hunger suppressant during long hunts, and a social lubricant during ceremonies. They’d typically chew the fermented plant material or brew it as a tea.
The active compounds responsible for kanna’s effects are a group of alkaloids — most notably mesembrine, mesembrenone, mesembrenol, and mesembranol. Together, these alkaloids interact with the brain’s serotonin system, which is thought to be behind kanna’s reputation for easing stress and gently elevating mood.
Now here’s where it gets interesting. The alkaloid content in raw Sceletium plant material is relatively low — often less than 1% by dry weight. To get a meaningful dose into a capsule or a few drops of tincture, manufacturers need to concentrate those alkaloids significantly. That’s where extraction comes in.
From field to factory: what the process actually looks like
Before extraction even begins, the plant material is harvested and — crucially — fermented. This step mirrors what indigenous communities have done for generations. Fresh Sceletium is packed tightly, sealed, and left to ferment for several days to weeks. Fermentation breaks down plant cell walls and converts some alkaloids into more bioavailable forms, which is part of why traditionally prepared kanna behaves differently from simply drying and grinding the raw plant.
Once fermented and dried, the plant is ground into a coarse powder. This is your starting material. What happens next depends on the type of extract being made.
The main extraction methods used today
- Alcohol extraction is probably the most common approach for kanna extract The dried plant material is soaked in ethanol, which acts as a solvent and draws the alkaloids out of the plant matrix. After soaking — sometimes for days — the liquid is filtered to remove plant debris, then the ethanol is gently evaporated off under low heat or vacuum pressure. What remains is a concentrated, sticky resin or dry extract powder with a much higher alkaloid percentage than the raw plant.
- Water-based extraction follows a similar principle but uses hot water instead of alcohol. This method is gentler and tends to preserve a broader range of plant compounds, though it may extract alkaloids less efficiently than ethanol. Some producers prefer this approach for consumers who want alcohol-free products.
- CO₂ extraction is a more sophisticated and expensive method, common in cannabis and hemp but increasingly used in botanical supplements. Supercritical carbon dioxide acts as a solvent at specific temperatures and pressures, pulling alkaloids and other compounds from the plant with impressive precision. The result is a very clean extract, free of residual solvents, with a predictable alkaloid profile.
Each method produces a slightly different product. The extraction method, solvent used, and how carefully the evaporation step is controlled all affect which alkaloids end up concentrated — and in what ratios.
What “standardized” actually means on a label
You’ve probably seen phrases like “standardized to 0.5% mesembrine” on a supplement label and wondered what that means in practice. Standardization is the process of testing the final extract and adjusting it — by blending batches or adding back isolated alkaloids — so that every batch hits a consistent alkaloid concentration.
This matters a lot for reliability. Without standardization, one batch of kanna extract might be significantly more potent than another, simply due to natural variation in the plant. Reputable manufacturers will third-party test their extracts and publish Certificates of Analysis (CoAs) confirming the alkaloid content.
A 10:1 extract, by comparison, simply means 10 kilograms of raw plant material was used to produce 1 kilogram of extract — a concentration ratio based on mass, not necessarily alkaloid content. It’s a rougher measure, but still useful for understanding potency relative to the raw herb.
Why the form of the extract matters for how you experience it
Not all kanna extracts behave the same way — and that’s not just about potency. The ratio of mesembrine to mesembrenone, for example, appears to influence the character of the effect. Mesembrine is thought to be the primary serotonin reuptake inhibitor, while mesembrenone may also inhibit an enzyme called PDE4, which plays a role in cognition and memory consolidation.
An extract skewed toward mesembrine might feel more calming and mood-lifting, while one with more mesembrenone might feel slightly more mentally stimulating. High-quality producers are paying attention to this now — not just chasing total alkaloid percentages, but aiming for specific alkaloid ratios.
This is one of the reasons I think it’s worth spending time researching where your kanna comes from and how it’s made. The plant has a lot of nuance, and a poorly produced extract can strip that nuance right out.
A few things worth keeping in mind
Kanna is generally well-tolerated at reasonable doses, but it’s not without considerations. Because it interacts with the serotonin system, combining it with other serotonergic substances — including SSRIs or SNRIs — carries real risks. If you’re on any medication that affects serotonin, it’s worth talking to a healthcare provider before trying kanna in any form.
South Africa has also moved to regulate Sceletium tortuosum, partly to protect both indigenous knowledge and wild plant populations. Reputable suppliers source from cultivated farms rather than wild-harvested plants, which is better for sustainability and ensures more consistent quality.
Frequently Asked Questions
Is kanna extract the same as raw kanna powder?
No. Raw kanna powder is simply dried, ground plant material with a relatively low alkaloid content. Kanna extract is a concentrated form produced through a solvent-based process, resulting in a much higher alkaloid percentage per gram.
How do I know if a kanna extract is good quality?
Look for third-party tested products with a published Certificate of Analysis showing alkaloid content. Standardized extracts — particularly those specifying mesembrine percentages — tend to offer more consistency than simple ratio extracts (like 10:1).
Can I take kanna extract with other supplements or medications?
Use caution, particularly with anything that affects serotonin. Combining kanna with SSRIs, SNRIs, or other serotonergic compounds is not recommended without medical supervision. Always check with a qualified healthcare provider if you’re unsure.
Does the fermentation step really matter?
Yes — traditional fermentation changes the alkaloid profile and improves bioavailability. Many researchers and formulators believe fermented Sceletium behaves differently from unfermented plant material, and most high-quality extracts begin with properly fermented starting material.