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Phosphatidyl Serine 100mg

120 Veggie Caps DRB-00220

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 enhance memory and healthy thinking abilities.* Plus, this powerful brain builder helps to manage mental and physical stress.* Yes please!

  • Gluten Free
  • Vegan
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This was recommended by my husband's neurologist for helping manage his MS. This was recommended by my husband's neurologist for helping manage his MS. We have found that it helps quite a bit and has seemed to slow the long term progression. This brand has worked better for him than the two other brands he has tried.

Reviewed in the United States on July 12, 2016Amazon

More organized and clear-headed. Since beginning this product I have felt much more organized and productive. Because I could tell a difference in my productivity and focus, I've ordered more and have recommended it to others.

Reviewed in the United States on August 23, 2017Amazon

Formulated SerinAid makes the difference. I have been using phosphatidylserine for many years to enhance my memory function. There are some that work like doctors best and some don't. This product with SerinAid is as good as it gets.

Reviewed in the United States on August 30, 2020Amazon
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Pure brain power.

Featuring SerinAid® PS, an effective nutrient that serves to 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 — its impact on memory, learning, concentration, focus, and recall is extremely well documented and trusted.

Suggested Use

Each veggie capsule contains 100 mg of Phosphatidylserine. Take one capsule three times daily, preferably with food for maximum absorption.


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.