Young or old, keeping your mind healthy and sharp is always a smart idea. Puritan's Pride Neuro-PS® is a great source for brain nutrition. Phosphatidylserine (PS) is a naturally occurring substance that's a key component of the brain. It plays a role in neurotransmitter release and ion transport. Neuro-PS® helps replenish Phosphatidylserine levels, which may decline with age. Neuro-PS® aids brain function and supports a healthy mind.