Aveda - scalp treatment shampoo..they used to have a serum that works amazing but they discontinued many years ago.
Silux shampoo from doctor that has ciclopirox Olamine in it. (this helps a little on some days)
Organic Hair growth treatments by Perth Key that use olive oil.
None of them really work. I do travel almsot every 10 days or more, and it can get worse when I travel tons, but I have this way before I started traveling.
And of course, I have thin hair too and its been scary for me to think about being bold.