In recent decades, many breeders worldwide have concentrated on creating new strains with the highest possible THC percentage. Nowadays strains with more than 20% THC, rising to percentages of around 30%, are no exception.
THC is the active ingredient of cannabis that has made the plant popular, famous and notorious. The effect of weed that is called 'high / stoned' is largely caused by THC.
Take a look at 10 of the strongest THC-rich strains available on the market today.