Hello Stephen,
It's not that I thought it actually worked, I was wondering if anybody had tried this. Reading what was posted on their website, it seemed that they took great care and refining all their products to be the best, of course you have to take into account that they are trying to sell their product, i'm always skeptical that were looking at another snake oil salesman.
-Tom
If you look at the ingredients there aren't any that have been proven to help tinnitus, not in any robust trials anyway. There are 3 stated active ingredients:
Gingko Biloba studies have reviewed by Cochrane; only 4 studies were found to be reliable enough to be included and the result was:
The limited evidence does not demonstrate that Ginkgo biloba is effective for tinnitus when this is the primary complaint.
And for Zinc, the Arches people reference some studies. The first was to measure if zinc affected audiometric performance
http://www.aurisnasuslarynx.com/article/S0385-8146(02)00145-1/abstract. They claim to have measured lower zinc levels in patients with tinnitus, but this was a study of 73 people. It's an interesting find but it certainly is not robust enough to prove anything, it's the sort of study that leads to a properly controlled trial.
This study
http://www.ncbi.nlm.nih.gov/pubmed/12544035 was not double blind so physician bias could be in play, plus they detected no significant improvement. Although the wording on the abstract is 'spun' to make it sound like they did.
Finally garlic. No studies on if it helps tinnitus at all.
So in summary, after a look at the evidence I can see no concrete proof that this product works at all. The article on their website does not attempt to address whether the trials for the ingredients are well controlled enough.
Many people do try supplements; if you feel like you want to then you can buy the ingredients for less individually.