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Phosphatidylserine 100mg

60 Softgels DRB-00168

Stay sharp

Fine tune your acuity, with Phosphatidylserine (PS). A vital brain nutrient, Phosphatidylserine is a building block for the brain’s nerve cell connections — known as synapses. PS can help enhance cell-to-cell communication to improve memory and healthy thinking abilities by facilitating the communication between neurons.* Plus, this powerful brain builder helps to manage mental and physical stress.* Yes please!

  • Gluten Free
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Good for your memory! Been using this for 4 years and my memory is a lot better than it was!

Reviewed in the United States on September 7, 2020Amazon

Great product. My brain thinks this is the best thing since oxygen. My memory, and sense of self, is much improved.

Reviewed in the United States on June 15, 2016Amazon

Part of my supplement regimen! I purchased these as a change from my regular Phosphasital Choline brand. They were a bit more reasonable per dosage. So far, so good! No side effects or nasty after taste. I have three (lucky me!) chronic illnesses that I take medications for. As an RN, I’ve learned even medicine that is made to help you can hurt other organs, your metabolism or mental state of mind. So, I take these as a boost to my liver & other organs. Arrived in no time & packaged carefully. Seems great so far!

Reviewed in the United States on May 17, 2018Amazon
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Pure brain power

Featuring SerinAid® PS, an efficacious nutrient that can help maintain and improve mental performance, this daily supplement supports a variety of cognitive functions. Phosphatidylserine has been studied for over 30 years in clinical trials around the world — documenting its impact on memory, learning, concentration, focus, and recall.

Suggested Use

Each softgel contains 100 mg of Phosphatidylserine (from SerinAid® PS). Take one softgel three times daily, preferably with food.


Each Doctors Best Phosphatidyl serine capsule provides maximum 24mg of Phosphatidylcholine and maximum 20mg of Phosphatidylethanolamine.

Doctor's Best products can be found at vitamin specialty, chain and independent natural product stores across the country, as well as online. We recommend that you use our online Where to Buy store finder to find a store near you or one of our online partners who can ship to you directly.

Doctor's Best products are quality tested and manufactured in the United States using highly qualified cGMP manufacturers and raw material ingredients. Doctor's Best sources raw materials from around the world and ingredients are subject to the intense testing and verification regardless of geography of origin.