Cannabinol (CBN) is an end product of THC, normally forming when THC is exposed to oxygen and heat. This makes it common old, dried out cannabis. CBN is known to be slightly more intoxicating and sedative than other known cannabinoids. Samples with significant levels of CBN (we're talking 1% by weight) can be useful for treating insomnia.
This website contains all the types of cannabis.
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