Hi David,
I don't mean to be conclusive. Sorry if it sounds so. Indeed it's worth TRYING. Meditation, as you've said, can reasonably help with hair loss, especially when it's stress related. But how far can you go with it? (I will be glad to hear some dramatic results, though) In case of treating hair loss, I take all these (including Amaroli) as something like diet-- may have some effects (and probably it has), but any such thing alone are very unlikely to kick start one's hair growth: exactly as what you've said, hair loss has many causes.
So, I agree that it may help a bit on hair loss, very much like diet. But probably not a "treatment" for hair loss. You're very unlikely to get significant hair growth BECAUSE OF Amaroli. If anyone find out that it really will give significant hair growth with a not-too-low successful rate, tell the public. Amaroli will become popular very soon then.
Let me clarify once again: I sincerely hope that amaroli will kick-start one's hair growth, even occasionally. Very much like I hope that "wrinkles disappear" because of some yoga practices. But who on earth can have no wrinkles into the old age? Even with intense yoga, we can't. May be some slow down in aging, but certainly not "reverse aging"-- may be some symptoms reverse for a while, but not aging.
Alvin