Mark Wahlberg has little to no facial hair and his hairline doesn’t seem to have receded. These are signs of very low testosterone levels.
Most likely he’s extensively used steroids to build muscle — otherwise he would have been a tiny dweeb due to his minuscule natural testosterone levels.
Although he can’t grow a beard, he’s incredibly lucky in the sense that he’ll probably never go bald.
Has he had any hair transplants of hair loss treatments?
From my examination I’ve determined that Mark has not had any transplants. However it wouldn’t surprise me if he’s used hair loss treatments like Minoxidil.
Even if you’re not losing your hair it could be a good idea to use a mild topical hair loss treatment like Minoxidil because it will prevent hair loss while improving hair health. It would also increase his chances of growing some facial hair.
Mark has no reason to have had a hair transplant because he has genetically low levels of the androgen hormone dihydrotestostetone (DHT).
Men who have high DHT levels have thick facial hair because DHT is the hormone that causes facial and body hair growth (as well as scalp hair loss).
Since Mark has low DHT levels he did not experience significant hair loss in his late teens and twenties (as many men do, even if they don’t realize it at the time). As a result he has a relatively juvenile hair line.
Weird fact: Did you know Mark Wahlberg has a third nipple?
One interesting and somewhat unusual fact about Mark Wahlberg is that he has a third nipple. In various interviews, Wahlberg has mentioned this anatomical quirk. While having a third nipple, also known as a supernumerary nipple or accessory nipple, is relatively rare, it’s not a serious medical condition and is generally considered a harmless genetic variation.