Is L-Arginine a Worthwhile Ingredient in Hearing Supplements?

https://www.reddit.com/r/ReviewJunkies/comments/1snylmn/180_days_testing_whispeara_can_this_potent/

If you have been shopping for a hearing supplement, you have probably noticed a familiar pattern. Many products focus on antioxidants, vitamins, or “circulation support,” then add one or two headline ingredients