Thanks a lot Dr. for this helpful blog site that keep us well informed about baldness. Two weeks ago, I did a HairDx test (rxr) for finasteride response. Do you think such test is accurate enough to build upon? How much it’s acurate per cent?
There are two HairDX tests — one which shows if you carry the genes for balding, and one which suggests how sensitive you are to finasteride. The statistics on both of these are not 100%, but HairDX doesn’t provide an actual accuracy percentage that I could find. I don’t have enough experience with HairDX to know how accurate they are first hand, but I would expect they’d be as accurate as possible. There are multiple reasons why accuracy could be skewed, including data collection errors, software errors, and disease.
It’s also worth noting that their Service Agreement page does say, “HairDX is providing no guarantee that the Service measurements will be successful or provide accurate results.”