Have you heard of Prostasan by A. Vogel in Switzerland? It's an organic saw palmetto extract that's been around since the 1960's. There have been 3 clinical studies with very good results. I think most saw palmetto extracts differ in production, extraction, organic/non-organic, etc., which may be why some studies show mixed results. I like that the company behind Prostasan has actually done the clinical studies.
Yes. Vogel is a high quality manufacturer. Worth a try but remember optimizing your diet and managing stress are keys.