I have read kavain and desmethoxyyangonin are two kavalactones that may have dopamine reuptake inhibition activity. I have already noticed gaining a dopamine tolerance after consuming kava for 4 consecutive days. High dopamine levels also interfere with sleep at night. I plan on cutting back to only 2-3 days a week, but to prevent future premature tolerances and interference with sleep, what kava strains have the lowest kavain and desmethoxyyangonin content? Thanks!