I developed tinnitus over a few months, and nothing seemed to help it. I I took a little powdered taurine I had sitting around, along with my morning pick-me-up supplements. I seemed to noticed a near-instant relief of the ear's ringing volume I've had all summer. I then looked it up and saw, indeed, there is research backing Taurine for tinnitus. It may be coincidental that the ringing started for me after I cut back a good bit this Summer on (taurine-containing) energy drinks.