If Facial Hair Loss is Not MPB, What Is It?

You said in en earlier archive, “You can have very high levels of DHT, but as long as your hair is not sensitive to DHT, Propecia will have little effect on the normal hairs.” My question is what causes hairs to thin where its not male pattern like a mustache, sideburns or a beard. Both my doctor and dermatologist, prescribed for me to take propecia or Rogaine but I haven’t any signs of male pattern baldness. The hairs on my mustache have become very thin, brown and a little white. 4 years ago the hairs were denser and black. I am a 26 year old male with African/Caucasian decent.

You are correct that MPB and DHT do not impact the facial hair. We see changes with age in many people, although you are young for thinning of facial hair. At this point, I do not have the answer to your problem. I would love to examine your beard and measure the thickness of different hairs from different parts of the face. That would give me more insights into your problem.