The genetic test is called Hair Dx, and it is about 70% accurate. It is done on saliva. (see web reference below). A better test is the HAIRCHECK test which tells us exactly how much hair you are losing in different parts of the scalp. We use this routinely in our office along with miniaturization studies. If you come to our office or our open house on April 9th (free) you can not only get this test done but you can also meet former patients who had hair transplants done as well.like the men in the video below