Gluten Free, Non-GMO, LE Certified. Promotes a Healthy Prostate. Dietary Supplement. PalmettoGuard® Saw Palmetto Formula with Beta-Sitosterol supports a healthy prostate by combining saw palmetto extract with beta-sitosterol and boron. What Is PalmettoGuard® Saw Palmetto and Beta-Sitosterol? The standardized extract of saw palmetto and beta-sitosterol in PalmettoGuard® Saw Palmetto with Beta-Sitosterol have been clinically studied to support prostate health and healthy hormone metabolism. Decades of research indicates that the beta-sitosterol compound in saw palmetto helps promote men’s urinary health. Extracts of the saw palmetto berry (Serenoa repens) have been found to support men’s urinary flow and comfort. The saw palmetto berry is rich in the bioactive compound beta-sitosterol, which has also been found to help promote a healthy urinary stream in men. Beta-sitosterol from palmetto and pine. PalmettoGuard® Saw Palmetto with Beta-Sitosterol combines high-potency saw palmetto extract with beta-sitosterol (from pine). Boron has been added to support healthy hormonal metabolism.