CBN The Sleepy Cannabinoid

Cannabinol, or CBN, is a minimally-intoxicating cannabinoid that is formed when THC is exposed to UV light and oxygen. Generally speaking, its presence is a strong indicator of the age of dried flower. However, you can expect to find small amounts of CBN (0.5%) present in fresh plants grown outdoors where UV exposure occurs during growth.

https://www.green-flower.com/articles/what-is-cbn-cannabinol?fbclid=IwAR2bmk7yhcy7itwpnyrkdRcw1aCw5TEwo7xthZ4pFJ_M_DyaH6KHpcEMNME