This topic is always a psychological roller-coaster to me.
Sometimes, I think the cure seems to be very close: 2 years away for proof of concept, and 10 years away for availability to everyone for a price.
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But more often, they are too good to be true, as we actually know very little about Androgenetic Alopecia, and the cure is based on a naive assumption:
Hair in donor area isn't and won't become vulnerable to DHT, so we can create these kind of hair and put them onto the balding/bald area.
1.Assumption True?
I am not sure if anyone try to generate hair with stem cells in the bald/balding area and see if the hair is susceptible to DHT. It would be bad if that hair is also invulnerable to DHT, which means that all hairs (or stem cells forming the follicles) are equal initially, but something alters the follicles... (Hope my conjecture is wrong, otherwise all these cure will fail.)
2.Outcome.
For injection based cure, how will the regenerated follicles distribute? Will they be naturally distributed?
For transplant based cure, the follicles needs to be manually distributed (and won't be natural at all).
We won't have the hair we had at 18, but may have as much hair as we had at 18.
3.Cost
Just look at PRP today:
Controversy outcome, old technique, fast procedure needing only a little skill to perform.
How much does that cost?
A stem cell cure:
significant outcome, latest technique, procedure a little time consuming needing excellent skill.
How much do you think it will cost, even if it becomes as old as PRP?
4.Risks
For transplant based cure, you may need a hair transplant of a very amount of grafts, which is painful and has high risks of infection and necrosis.
I need hair today, and I want to keep it even if I am old.
But as I am losing hair now, very little point at getting it in the remote future: if I have that money, I will spend it on my heard, liver, lung and kidney, or leave it to my son (if I will have one) in case he needs to fight against Androgenetic Alopecia.