Dietary Supplement. Supports Healthy Prostate Function* Best Saw Palmetto Extract contains pure standardized saw palmetto extract guaranteed to supply 85% to 95% fatty acids and beneficial plant sterols, which are the herb s key active ingredients. Extraction is done using carbon dioxide; the finished product is free of solvent residues. Supports healthy function of the prostate gland and urinary tract.*. Science-Based Nutrition™ Contains nothing other than listed ingredients. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.