Shop › Phosphatidyl Serine Complex Image 1 of 2 Image 2 of 2 Phosphatidyl Serine Complex $34.00 Add To Cart Added! As a dietary supplement, adults take 1 softgel, 1 to 3 times daily with food, or as directed by a healthcare professional. As a dietary supplement, adults take 1 softgel, 1 to 3 times daily with food, or as directed by a healthcare professional.