I received a bottle of the Life Extension Huperzine A 200mcg yesterday afternoon directly from Life Extension. Took one capsule and an hour later my tinnitus WENT UP by 10-20 db. This morning, the next day, it's back to normal. Life Extension gave me a full refund. I've been on a daily regimen of 100mg "high absorption" magnesium, 50mg ubiquinol, 1000mcg B12, 300mg alpha lipoic acid, and (once at night and once in the morning) 120mg Tebonin gingko and 1 capsule of Thorne ReservaCel (niagen + resveratrol). I also take 3mg melatonin at night. The gingko and niagen has clearly helped, particularly on a lower tone from my right ear.