Dietary Supplement Non-GMO Soy Free High Absorption & Stability PS Factor Healthy Brain Function Purity & Potency Guaranteed Sharp-PS GreenPS-IQ synergistically combines Sharp-PS Green (phosphatidylserine) and valuable essential fatty acids to support brain function. The tuna oil and EPO are tested for heavy metals, pesticides and peroxide. PS-IQ is ideal for anyone seeking nutritional brain support safely and naturally.