$4.99 Standard Shipping
Free Shipping Icon



Doctor's Best

Best Phosphatidyl Serine

3.9 out of 5 (8)

Best Phosphatidyl Serine

Item: DB142

  • Best Phosphatidylserine from Doctor's Best

  • A building block for healthy neurons

  • Supports memory and thinking ability

100 mg 120 Veg Caps

Retail $54.99
In Stock
  • Best Phosphatidylserine from Doctor's Best

  • A building block for healthy neurons

  • Supports memory and thinking ability

Nourish your brain with Best Phosphatidylserine (PS) from Doctor's Best. This formula delivers PS, an essential brain nutrient, in a matrix of other phospholipids and cofactors. PS and other phospholipids are structural components of brain neurons that can enhance cell-to-cell communication. Studies have shown the ability of supplemental PS to support healthy cognitive function. It may enhance healthy memory and thinking ability by facilitating communication between neurons. Best Phosphatidylserine features PS and other essential nutritional cofactors in a formula that is suitable for vegetarians. Gluten free. Non-GMO.

Terms and Ingredient Definitions

Supplement Facts

Serving Size 1 Capsule

Servings Per Container 120 servings

  Amount Per Serving %Daily Value
SerinAid® Phosphatidylserine 200 mg
Phosphatidylserine (PS) 100 mg min.  
Phosphatidylcholine 24 mg max.  
Phosphatidylethanolamine 20 mg max.  

†Daily Value not established.

Other Ingredients: Cellulose, modified cellulose (vegetarian capsule), silicon dioxide, magnesium stearate (vegetable source).

Contains Soy.

Suggested Adult Use: Take 1 capsule 2 or 3 times daily with meals, or as recommended by a nutritionally-informed physician.

Suitable for vegetarians. Contains nothing other than listed ingredients.

Shipping Weight

.24 lbs

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 3.9 out of 5 by 8 reviewers.
Rated 5 out of 5 by Remembering What? This product is supposed to help with memory. I did not think it did much until I ran out. After a couple or three days, I was in the store buying a few and then online to Swanson for some more. I don't have any contraindications with it either. September 21, 2014
Rated 1 out of 5 by Noxious odor This product smells awful. Doctor's Best contends it's ok. I must disagree. I won't be buying this brand of PS again. May 25, 2014
Rated 1 out of 5 by THESE PILLS HAVE A VERY DISAGREEABLE ODOR . February 18, 2014
Rated 5 out of 5 by great stuff Swanson has been a household word my mom used regularly. Now I'm on board too. Dr. Best Phosphtidyl Serine is a must for me and my brain to function optimally. I don't let myself run out! August 13, 2013
Rated 4 out of 5 by better memory I can see improved memory with use of this product June 3, 2013
Rated 5 out of 5 by i have shopped for phosphatadine serine for quite a while. Swanson has proved to be my most prompt, convenient, valuable and reliable source. April 8, 2013
  • 2016-05-29 T12:39:27.498-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_8, tr_8
  • loc_en_US, sid_DB142, prod, sort_default
1-7 of 7

Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain."

Lee Swanson, Founder of Swanson Health Products

Risk-Free Purchase Guarantee

If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping.

Swanson's Standards

We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

Learn More
close popup
No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.


We are having trouble processing your request.

Our apologies!

Please try again later.