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Jarrow Formulas, PS 100, Phosphatidylserine, 100 mg, 120 Capsules

By Jarrow Formulas

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In Stock
  • Product Code: JRW-16020
  • UPC Code: 790011160205
  • Package Quantity: 120 Capsules
  • Dimensions: 4.5 x 2.5 x 2.5 in, 0.2 lbs (0.09 kg)
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Product Overview

  • Promotes Brain Function
  • Cogni-PS Phosphatidylserine
  • Dietary Supplement

Phosphatidylserine (PS) is a natural phospholipid that is an essential component of cell membranes. Cogni-PS promotes brain function by helping maintain neuronal membrane fluidity (cell-to-cell communication), which is associated with cognition, mental performance, attentiveness and reaction time. PS protects against stress-induced activity, reducing the action of cortisol (catabolic stress hormone).

Cogni-PS is a concentrated form of phosphatidylserine that offers superior stability.

Suggested Use

Usage: Take 1 capsule up to 3 times per day with a meal or as directed by your qualified health care professional. Best kept refrigerated.

Other Ingredients

Cellulose, silicon dioxide, magnesium stearate (vegetable source) and gamma tocopherol. Capsule consists of gelatin.

Contains: Soy.

No wheat, no gluten, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.


Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 120
  Amount Per Serving % DV
Phosphatidylserine (PS) 100 mg *
* Daily value not established.

iHerb Customer Reviews

5 Stars
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1 Stars

Amazing stuff for reducing stress and cognitive functions

Posted by Reviewer1075408 on Oct 27, 2009

While this product doesn't get a lot of attention I think it's a very important supplement. It seems to take a few weeks to get the full effect, but it's helped me to: think clearer, be more relaxed, my body just seems to be under less stress altogether. This also has properties that blunt cortisol and I'm noticing that all my other hormones are working better since cortisol has been reduced. I can almost stop taking my thyroid meds.

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15 people found the following review helpful

Sleep aid

Posted by Reviewer2404199 on Oct 24, 2009

I am used to getting up 3 to 5 times a night to use the bathroom. This keeps me asleep till about 5 in the morning. It works much better for me than melatonin.

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10 people found the following review helpful

Awesome results to improve my children's concentration and performance in school

Posted by Reviewer1393634 on Mar 12, 2009

Jarrow Formulas, PS-100, 100 mg is an effective supplement to drastically improve my kids's learning capability in school via increased concentration and brain function. Thanks to iHerb for recommending PS-100 !

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10 people found the following review helpful

Great Quality; Great Price

Posted by Reviewer2635417 on May 02, 2007

I take 4 pills of PS after a heavy workout - it is supposed to control cortisol and I can definitely tell the difference if I don't take it (I'm more agitated and sore without it). I've used Jarrow PS for years - it's always high quality and usually the best price.

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9 people found the following review helpful

Great product!

Posted by Reviewer1617477 on Oct 04, 2006

I take two of these capsules each morning, and they help me to concentrate all day long.

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8 people found the following review helpful

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