Hi physics envy. No chewing or leaf material. Simply sprinkle the powder under your tongue. After 5 minutes or so I swish the accumulated saliva around my mouth, but not sure if this is even needed. Spit after 15 to 20 minutes.

I weigh the powder on a small piece of paper on the mg scale. Then bring the same paper up to my mouth and tilt the paper so the powder slides under my tongue.

The entire process is very easy/simple.