How young can you start finasteride?
https://healthell.blogspot.com/2020/12/how-young-can-you-start-finasteride.html
The younger you are, the better the finasteride works. This applies in most men; however, there are a few men who are going to develop advanced balding patterns by their mid-20s or earlier and the effects of finasteride on them is much less valuable. Look to your father or grandfathers patterns of balding to see if you may fall into this category.
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