Source Naturals Phosphatidyl Serine Complex 500 mg is formulated to deliver Phosphatidyl Serine, with 500mg derived from a Soybean Extract. Phosphatidyl Serine is a phospholipid often recognized for its role in cellular function, particularly in the brain. This product is *not* a source of soy isoflavones; rather, it uses soy as a source material for Phosphatidyl Serine.
Individuals seeking soy isoflavone benefits or soy protein will find this product unsuitable for those specific goals. It is clearly designed for those interested in Phosphatidyl Serine. While it uses soy as a base, its functional ingredient is distinct from isoflavones or protein, meaning it does not fit the common expectations of a 'Soy Isoflavones' or 'Soy Protein' product.