Saw Palmetto, Serenoa Repens, is a native plant of North America. It is one of the top ten selling herbs nationwide. The saw palmetto plant contains serrated leaves and abundant berries. Many European countries use saw palmetto oil as a medical treatment for benign prostate hyperplasia. Typical symptoms include difficulty urinating, weak urination and frequent urination. Research shows that saw palmetto greatly reduces these symptoms in about 2/3 of men. It has been shown that the prostate tends to grow when left untreated, saw palmetto can cause a definite small shrinkage. The benefits of this herb may require 4-6 weeks for desired results.