كسارة الصدم pf1007v. Saw Palmetto Berry as a Treatment for BPH. Saw palmetto berry is the most popular of these agents, and in vitro some studies suggest that liposterolic extract of the plant has antiandrogenic effects that inhibit the type 1 and type 2 isoenzymes of 5αreductase however there are no clinical studies that show any decrease in serum dihydrotestosterone or ...