Which terpenes are psychoactive by themselves?
Have you ever tried terpenes by their selves?
I have and do not agree, they are not even in the same league as THC for psychoactivity, not even close.
The reason more tepenes in a plant has more of an effect is because the terpenes modify the THC effects. No THC, no effects from the terpenes, or at least almost none. If they got you high alone they would be illegal, think about it.
-SamS
I couldn't list the effects from personal experience for every terpene but I've been using essential oils to clean up the air and clear my sinuses for a few years and definitely feel an effect when I overdo something like a citrus oil.
I've used lavender oil as a relaxation agent for a while too and definitely feel an effect.
But the one I've tried that had to most effect was probably Frankincense, it's a strong anti depressant, too much and you might get nauseous but it definitely works.
maybe psychoactive wasn't the right word but they do have psychological and physiological effects on their own, of course concentration comes into play.