How long takes of weekly usage until this shows effects, do you use it and like to share your experience?

And do you use it in your face and genital area as a biological male? I am over 30 but cannot develop a full beard, it looks more like what mortals get with around 16. I did not even need shaving before age of 18 and people guess I'm around early 20s. Why should males not be able to use it in face?