Phosphatidyl Serine 100 Supports Cognitive Function Phosphatidyl serine (PS) is one of the key human brain phospholipids and is essential for normal neuron structure and function. Phosphatidyl serine, along with other essential fatty acids, may also play a critical role in cognitive function, including maintaining concentration and memory. Phosphatidyl Serine - Nutritional Support for The Brain All we have ever known or will ever feel, begins and ends with the hundreds of billions of nerve cells that form our brain. Without them, there can be no experience; for us, nothing would exist. Our mind and personality, the sense of who we are, emanate from this immensely intricate system of nerves. The brain's remarkable ability to perceive and perform, remember and learn, is severely challenged by today's social and physical environment. These environmental factors accelerate the decline in nerve cell activity that normally occurs with age. Recent clini