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Source Naturals, Phosphatidylserine 100, 100 mg, 60 Capsules (Discontinued Item)

By Source Naturals

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The item is currently out of stock and replenishment is unconfirmed.

Out of Stock - Discontinued
  • Product Code: SNS-01148
  • UPC Code: 021078011484
  • Package Quantity: 60 Capsules
  • Dimensions: 1.8 x 1.8 x 3.3 in, 0.1 lbs (0.05 kg)

Product Overview

  • Dietary Supplement
  • Supports Cognitive Function

Phosphatidylserine (PS) is one of the key human brain phospholipids and is essential for normal neuron structure and function. PS, along with other essential fatty acids, may also play a critical role in cognitive function, including maintaining concentration and memory.

Suggested Use

1 capsule twice daily.

Other Ingredients

Microcrystalline cellulose, hydroxypropyl methylcellulose (capsule), silicified microcrystalline cellulose, colloidal silicon dioxide, and magnesium stearate.


If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Capsule
  Amount per Serving % DV
Sharp-PS Soybean Extract 166 mg
Phosphatidylserine 100 mg
†Daily Value not established.

iHerb Customer Reviews

5 Stars
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1 Stars

Gave me back my sleep!

Posted by Reviewer1356074 on Nov 20, 2010

I have been using this product for several months after my doctor recommended it for my insomnia. I could fall asleep fine, but would only sleep about 4 hours and be wide awake the rest of the night. This had been going on for several years. The early waking kept me exhausted. I thought it was perimenopause, stress, my low thyroid issues or low adrenals. Could be caused by a combination of everything, but Phosphatidyl serine reportedly calms the brain and that is definitely what happened with me. It took a couple of weeks to see a difference. I took one in the morning with breakfast and one in the evening about an hour before bed to start with. Now I am able to just take one during the day and I sleep great and wake up at a more normal time around 6 am. BYW, it is not recommended to take a phosphatidyl complex because the choline interferes with the serine absorption.

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6 people found the following review helpful

GREAT for staying asleep at night

Posted by cristal on Mar 03, 2011

My cortisol peaks around 3am and wakes me up bright-eyed, unable to fall back to sleep. These have helped tremendously. Recommended by my doctor. I take 3 @ bedtime. I see that most people take them early in the day. But, I have low cortisol issues in the early day (and high cortisol in the middle of the night!).

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2 people found the following review helpful


Posted by Reviewer2214705 on Aug 03, 2011

I have been using this product for years and can DEFINITELY tell a difference in my cognition when I am not taking it.

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1 person found the following review helpful

3 time I've bought it!!

Posted by Reviewer2563616 on Feb 25, 2010

My dad who lives in South Africa asks me to buy he totally believes in it , so much so this is the third time I have bought it for him!

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1 person found the following review helpful

Great stuff!

Posted by Reviewer2089761 on Feb 25, 2010

This really seems to help my memory. I've been taking one a day. After 3 days, I did better on a memory puzzle than I had ever done.

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