How did you find out about this? I lost my hearing in one ear due to an acoustic neuroma (the operation damaged my auditory nerve). I've never heard (though, I've also never looked!) that sea salts/oils/vitamins could repair damage.
I routinely get downvoted and/or lambasted for answering questions like this publicly on HN. Overtime is available this week for me at work, so I honestly don't have the time to try to give you a meaningful, useful answer on a public forum where it is politically incorrect to discuss what I know on the topic. That's just way too much work right this minute. Please write me privately and I will happy to do my best to answer your questions. Email address is in my profile.
Where/how did you start your research? Any tips?