Only been drinking kava 3 or 4 weeks not sure. But I'm feeling it good. I feel like superman with my ability to focus and hear. The ears are ringing. Sounds are way more interesting. I'm not sure how to say this nice and proper, but I think I know now what they mean by euphoric. It feels in my head like right before you climax in bed. Hope that's ok to say on the forum. This kava ROCKS. If your on the fence get it. This was the best kava for me so far on my kava journey.