Traditionally used for prostate health in men, saw palmetto can also be beneficial for women with PCOS. It's believed to block the enzyme that converts testosterone to its more potent form, dihydrotestosterone (DHT), which may help manage PCOS-related symptoms.
Saw Palmetto acts as an anti-androgen, blocks 5-alpha-reductase activityand reduces the conversion of the testosterone into a more active form called dihydrotestosterone (DHT). This in turn may help prevent hirsutism or excessive hairiness in women with PCOS. It also helps thinning hair grow back. Naturopaths often suggest this herb for the treatment of PCOS because it helps correct the hormonal imbalance. Take 320 mg of standardized saw palmetto extract daily for a few months. If you are taking a liquid extract, take one teaspoon per day.