@
Kiowa How old is your mother? If she's middle-age, that's a common problem that can be combatted with internal and external remedies.
Thinning crowns for women usually starts around age 40. And you're right. She does need a DHT blocker (caffeine, teas, coffee, etc.) There is a big thread about the effects of caffeine on the thinning crown.
I use Earl Grey black tea and coffee to rinse with. Also, I add either coffee oil or caffeine (purchased from Amazon.com) to my DCs.
Also, @
Shadiyah started a very good thread about her mom's hair journey.
http://www.longhaircareforum.com/showthread.php?t=529937
There are some very good before/after pictures at the start and end of the thread.
I, also, take Saw Palmetto.
All, in all, this has been successful for me in addition to ayurvedic. Before I started my HHJ in 2009, my crown was thinning. My hair has thickened to its former glory and I am happy.
The key to success is consistency. I have never let up or strayed from my regimen.