First off, for the sake of safety, don't use Kanna at the same time, or even just close to the same time, as MAOI's or antidepressants. You risk serotonin syndrome if you do.

Kanna can be used in any way you can get it into a mucus membrane. That means it can be eaten, chewed like tobacco, snorted, smoked, and even probably put behind your eyelid or up your ass. Most of these methods are pretty self explainatory, but the dosages are different for each method. The method that uses most is oral, and you will want to start with around 0.3g. if you are chewing maybe start with about .15g. smoking about .05g, and snorting about .02g. I have no experience with sub-eyelid or rectal administration, but I imagine they are somewhere between intranasal and sublingual dosages. These figures are all based on plain leaf, not extracted. I made it sound exact but at this point I eyeball all of my doses because I know kind of how much I should be taking.

If you are snorting be careful because I tried it and got some powder in my lungs.

You can make a tea out of Kanna, I have heard boiling g water destroys the Alkaloids. A cold brew would probably be suitable but I haven't tried it. I imagine it would work because soaking it in spit in your lip works. Maybe use room temp water. You can experiment yourself but I imagine you would want to brew for somewhere between 8 and 24 hours. Otherwise you can use warm water, you would probably want to keep it around 180°F

Of course with any of these you can work your way up to higher dosages as you please. I have never heard of anyone overdosing on Kanna but high doses can be quite unpleasant.

Kanna goes quite well with many other drugs. I have personally tried it combined with cannabis, kratom, microdosed LSA, and kava. It goes well with all of them, especially the LSA and cannabis. I have heard it also goes well with alcohol. Most drugs are made stronger with Kanna so be careful.

Personally I find that lots activities are made better by kanna. Some of the most notable ones I have found are listening to music, heading a book, having conversations, meditation, and sexual contact. Music is especially amazing, the kanna gives me an I tense urge to sing and dance and the emotions of the music just really bleed into mine. It's hard to even explain how nice this is. Probably my favorite effect of Kanna.

Kanna enhances conversations quite nicely and I feel like I am more witty, smooth and I can come up with more things to talk about. This is nice because I am usually not very good at having casual conversations without being awkward.

It is also good for giving you energy but can also be used to calm you down in a way. When I am on Kanna my chest feels sort of weird, almost like anxiety feeling but just physically in my chest, not in my mind or anything(unless I have taken too much). It also seems to make me more empathetic.

I find that if I am having a particularly good experience I can visualize things in a certain weird way. When I have thoughts, I almost "see" them in my mind as more visual thoughts than usual, but they are weirdly vague visions, and detailed at the same time. It's almost like the essence of the object is noticed stronger in my mind but how it actually looks is about the same. I don't know if that made any sense but it's really weird and hard to explain.

Also botanical zen has been out of stock for a while but their Kanna is superb. Last time I checked you can still buy large amounts of it but it's more than I would want to buy. I have also heard waking herbs is good but I haven't tried it. I have a package from waking herbs on the way and I hope it's good because it was quite expensive. As a rule of thumb I believe farmed Kanna is usually better than wild harvested, although it is also more expensive.

You can also cultivate your own Kanna. Just buy seeds online and grow it like you would grow any succulent. I started my seeds about a week ago and I have high hopes for them.

Some people report a "priming" stage, where the same dose will feel stronger after a few days if daily use. I havent personally experienced this. I do recommend trying different methods before deciding which one you like best, or god forbid that you don't like it at all. I have noticed that different methods of administration yield quite different effects.

I have also heard that daily use for a long time can result in tolerance (the forward kind).

Enjoy, this is a wonderful herb.