Because of the antiandrogen activity of spironolactone, it can be quite effective in treating acne in women,  and also reduces oil that is naturally produced in the skin.   Though not the primary intended purpose of the medication, the ability of spironolactone to be helpful with problematic skin and acne conditions was discovered to be one of the beneficial side effects and has been quite successful.   Oftentimes, for women treating acne, spironolactone is prescribed and paired with a birth control pill .   Positive results in the pairing of these two medications have been observed, although these results may not be seen for up to three months.   Spironolactone is commonly used in the treatment of hirsutism in women, and is considered to be a first-line antiandrogen for this indication.  Spironolactone can be used in the treatment of female pattern hair loss (FPHL).  There is tentative low quality evidence supporting its use for this indication.  Although apparently effective, it should be noted that not all cases of FPHL are dependent on androgens.