Scotty,
I think there are over 20 different high quality sources (other high quality supplement companies) that also offer nicotinamide riboside other than the company Elysium, which you seem to point to as having potential issues as a company?
Hence, this study is not about Elysium, it is about the exciting findings of nicotinamide riboside and it's potential benefits on hearing! As far as getting my nicotinamide riboside from the company Elysium, I managed to snag the nicotinamide riboside they sell at less than 30 percent of current sales cost. That made it easy for me to go this route initially for this compound.
As of today there are quite a few peer based articles and many different tirals on what nicotinamide riboside can activate within the cell's mitochondria, And now they are also finding supporting evidence that point to hearing protection as well.
If these peer based studies show any merit for hearing improvement or haring protection, I say as an ardent audiophile -
"YEE HA!" Cheers,
Eric Hider - dB Audio Labs