Dha Pure Npd1 is a food supplement based on deodorized fish oil and free of phytanic acid, treated using supercritical CO2 technology (cold extraction of DHA) to achieve the best quality standard that current technology allows. Docosahexaenoic acid (DHA) contributes to maintaining normal vision and brain function; to maintaining normal blood pressure and maintaining normal levels of triglycerides in the blood. How to use Take one (1) to four (4) pearls a day, preferably with meals, or as recommended by a professional.