Snippet from the opinion article:
I read with interest your article Chemotherapy Hair Loss Invention From Sweden Might Help Patients Keep Hair but it really is old news !Around thirty years ago, Dr. Bill Williams, of NASA, conducted research on thermo control of body temperature (very important to astronauts in space suits). He patented his invention of the “Cool Head and Cool Neck Band”.
Read the rest at the Epoch Times — Chemotherapy Hair Loss Prevention Pioneered by NASA, Thirty Years Ago
The above is part of a letter by a retired NASA researcher, and it should be noted that it is in the opinion section.
It basically says that a NASA scientist helped develop a cooling system for helmets, and although the headline might lead you to believe there’s more info about hair loss and chemo, it only briefly mentions an “experiment to save the hair of chemotherapy patients“. But that’s it. Unfortunately, it doesn’t discuss the study or what that experiment was… and I’m coming up empty when trying to find if the study was ever published. Anyone?
The claims are extensive and suggestive, and the various elements in the shampoo have never been proven to treat thinning hair any better than other shampoos. If Men’s Health feels that the Bosley Pro is a good shampoo, it may be worth a try… but I truly doubt that it will treat hair loss in the way that balding men may hope.
I was flipping through the current Nov/Dec issue of the Hair Transplant Forum International (a print newsletter for the hair transplant industry) and wanted to share something I read. 
Read the full press release — 
With regular henna ink, I would not think so. Henna ink is essentially henna powder mixed with eucalyptus oil and coffee/tea, and none of those will stop the absorption. It’s commonly used for temporary tattoos (see right).
I like to see what are called double blind studies and other controlled research that would prove value beyond a shadow of a doubt. The problem here is that there is no proof that I would define as objective, just claims that the product works.
I just heard a story from another doctor of a young girl (let’s call her Shirley) who went to a beauty school to get highlights in her hair. The student beautician put strands of her hair in aluminum foil and “painted” them with a bleach. Shirley’s head was then put under a hot hair dryer. After about 15 minutes she developed severe pain in the crown of her head. The student beautician then pulled the hair dryer away and shampooed Shirley’s hair. Later that night, she noticed swelling in back of the head. Over the next few days the pain got better, but after about a week she saw something horrific happen. As Shirley brushed her hair, part of her scalp peeled off (along with the hair in the brush). The area measured approximately 1 1/2 inches round, and when it eventually healed, it was scarred and incapable of growing hair.
I’m not familiar with Aidoo products, but if they really achieved some great breakthrough over a decade ago, I expect I would’ve become familiar with it by now. Or I would’ve at least heard of it. 
Read the full story — 
One of the things I enjoy about the annual ISHRS meeting is that I am introduced to new products. Sometimes the products can be half-baked or without merit, but every now and then something catches my eye and piques my interest. So at the recent ISHRS meeting in Boston, I was shown a refined instrument called 
I doubt your hair loss is related to what you did with Nair 15 years ago. Nair doesn’t cause permanent loss, especially after one application. There might’ve been some kind of chemical burn in the area, but I can’t imagine it would last for this long (and you didn’t mention experiencing any prolonged skin irritation either).
If you understand a basic fact about hair loss, it’s really quite simple: Blocking the impact of androgens at the hair level will favorably impact hair loss. It could be a promising direction, but at this time good data is not in hand, so an anti-androgen cream is not a proven solution for the hair loss problem.