Stem cells are still a long way from being effective treatment in MS. I experienced some benefit after stem cells, but not sure it was worth all that money. I had the Israeli protocol.
As for the hair - I'm losing mine quite a bit these days, but I think that's just a function of age. I'm not on any meds, and mainly focus on diet and supplements, though it's certainly a challenge.
If you want a lot more info on stem cell stories check out MS World, there's a site dedicated to stem cells. Most of it is old and posters have been silent, though not sure why that is. I've spoken with many people who've had stems and a few have achieved modest benefit, though your success probably depends on many different factors, including your age, level of disability, the specific stem protocol.
Professor Richard Burt is probably the leader of the MS/Stem Cell movement in the U.S. Try googling him.
If you're going to get it done, I would encourage you to stick to a clinical trial. clinicaltrials.gov