L-carnosine is VERY promising for MS treatment. It's been found that carnosine levels are significantly decreased in both animal MS models and humans with MS. [1]
This [2] completed (results pending) small study will try to verify if supplementing with carnosine will help slow down the progress of or even reverse MS.
Unofficially, I've heard it was a great success. But let's wait.
Ive used L-carnosine in conjunction with zinc, l-glutamine, keto+IF to repair a serious aspirin lesion in my gut and it worked great. I've read that benfotiamine can also help with myelin repair but do not have the studies handy.