I'd imagine all dimethyltryptamine molecules are the same, any apparent difference would come from impurities from extraction.

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The root bark is the part that contains DMT.

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MAOIs are legal everywhere as far as I know.

Since when does salvia contain psilocybin?

http://plants.usda.gov/java/county?stat ... mbol=PHBR3 Brachystachys is the best phalaris; if you happen to live in that county you're lucky. Otherwise, just grow it from seed, it grows pretty fast and easily.

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The plant itself is not harmful. The only somewhat harmful thing is the smoke, but if you do it once a week, it shouldn't be a problem.