From Manufacturer''s Label:Helping to maintain memory is one of the critical roles in cognitive function taht Phosphatidyl Serine (PS) plays. It is a critical component of nerve cell membranes where electrical impulses carry thoughts, feelings, and instruction to run the body and mind. Preliminary research suggests that Phosphatidyl Serine may also help support a healthy stress response.** Because Vegan True Phosphatidyl Serine is sourced from soy, this unique formula makes it an ideal PS source for vegans. Sharp-PS is a registered trademark of Enzymotec Ltd.**Vegan. 30 capsules. 30 servings per container.Manufactured by: Source Naturals