I've had tinnitus for many years now - and boy is it exhausting to deal with at times! But!! I have found some relief with using Lion's mane tincture. I'm not up to full doses yet (raising it very slowly along several other things), but even at just 12 drops twice a day it's slowed down my tinnitus. I even actually have short periods without any tinnitus at this point!!
It still returns right now, but even when it returns, I haven't gotten any of those really loud, super sharp/high pitched squealing lately either (I hope I haven't just jinxed myself!! LOL!).
It's also helped other areas of my body as well, particularly my hands/fingers, feet/toes and a funny spot - around my mouth and a few other places that I've noticed improvements.