Kona Kava Farms 6% Kavalactone Extract Premium Tincture | Potent Relaxation Supplement Supports Sleep, Enhances Happiness, Joy, Energy, Stress & Anxiety Relief | Maximum Power Formula (6% Kavalactone)

I am not sure if this product has worked. I have used it several times, and have note been noticeably relaxed. I do not use it daily, I have actually backed off because one side effect is that it numbs your mouth, like novocaine..or c-caine. I don't know if this is a kava kava thing, or the preparation.