Mackerel is an excellent source of Phosphatidylserine as it contains approximately 480 mg / 100 grams by weight.
Vayacog contains Lipicogen™, a proprietary composition containing phosphatidylserine-omega 3, DHA (Docosahexaenoic acid) enriched, which was developed by VAYA Pharma (division of Enzymotec LTD), a specialty pharmaceutical company.