Saw palmetto berries have been used for many years as a herbal treatment for symptoms of an enlarged prostate, a common condition in benign prostatic hyperplasia or BPH. Prostasan contains an extract of Saw palmetto berries. It is a licensed traditional herbal remedy used to treat The urinary symptoms of BPH in men with the diagnosis of benign prostatic hypertrophy. Prostasan contains an extract of Saw palmetto berries rich in oil. These are harvested from Saw palmetto plants grown to the north of the Everglades in Florida without the use of artificial fertilisers, Each Prostasan Saw palmetto capsule contains 320mg of herbal extract (as soft extract) from Saw palmetto fruit (or berries).