Is Finpecia good for a woman at the age of 20?

Minoxidil helps to stopping hair loss and thickening of hair although it may cause a little loss at beginning . But ıf you stop to use minox after a long time usage, you may experience a fast thinning, even loss of hair because of ending action of active ingredient....

If you stepped up to 10% minoxidil and sill have no response, you should consider yourself a non-responder

We don't diagnose miniaturization based on one hair. The only thing that can be said is that one hair is thinner than the other. Miniaturization is a field phenomenon whereby many hairs in a defined area become thinner. It is normal for a few hairs on anyone's scalp to be thinner. The rest of...

This is a difficult problem and the cause is most likely stress related, assuming that you are a female.  This rarely happens in men

At  your age thinning hair may be related to nutrition or other underlying medical condition. As you stated it seems you are underweight and have a hard time gaining weight but would see an internal medicine physician to be sure there is no underlying medical problem causing you to be thin...

Minocycline and Minoxidil can both cause hair shedding. However, the chances of each causing shedding are actually very different. One of the drugs you mentioned (minocycline) rarely causes hair loss and the other drug you mentioned nearly always causes some degree of hair loss in the first 1-...