What Is Saw Palmetto And Does It Prevent Hair Loss?
Q: What is Saw Palmetto? — R.P., White Plains, NY
A: Saw Palmetto is a dwarf palm plant native to North America. The active ingredients can be found in the plant’s brown-black berries. It is proposed that it blocks the enzyme 5-alpha-reductase that converts testosterone to dihydrotestosterone (DHT). There is little scientific evidence that Saw Palmetto is actually effective for hair loss.
