100mg of phosphatidyl serine a level consistent with studieswith 5mg zinc for normal cognitive function purest form of nongmo soya phosphatidyl serine ps is often described as one of the building blocks of brain cell membranes however as we get older our natural production starts to decline which is why supplementation is often recommended phosphatidyl serine 100mg makes the perfect partner to refreshall®p 128classfbrand important our bestselling product specifically designed for memory with ginkgo 6000p 154classfbrand important & other herbs ps can also be taken alongside any of our multis without fear of duplication it also makes the perfect partner to omega 3 fish oilscoilsclassfbrand important containing dha for the maintenance of normal brain function at a glance some companies products may appear to deliver 100mg of ps per tablet when in fact they provide just 20 of this amount at natures best you can be sure that each tablet contains 100mg of ps a level consistent with studies w...