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Thorne Research, Iso-Phos, 60 Veggie Caps

By Thorne Research

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  • Product Code: THR-71502
  • UPC Code: 693749715023
  • Package Quantity: 60 Veggie Caps
  • Dimensions: 2 x 2 x 3.9 in, 0.15 lbs (0.07 kg)
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Product Overview

  • Dietary Supplement
  • Hypoallergenic

Phosphatidylserine (PS) is essential for nerve cell membranes to maintain the environment required for optimal brain function. Abundant clinical research has shown this nutrient to be important in helping to optimize cognitive function, particularly in the aging brain.

Phosphatidylserine improves cell-to-cell communication in the brain, and thus cognitive function, at least in part by increasing cell membrane fluidity. Other mechanisms of action include improved cell metabolism (such as glucose utilization) and enhanced neurotransmitter formation. Phosphatidylserine also appears to have antioxidant activity, potentially protecting the brain from free radicals.

Suggested Use

Take 1 capsule two to three times daily or as recommended by your health-care practitioner.

Other Ingredients

Hypromellose (derived from cellulose) capsule, microcrystalline cellulose, silicon dioxide, leucine.

Contains ingredient derived from soy.


Tamper Evident: Use only if bottle is sealed.

If pregnant, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

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Supplement Facts
Serving Size: One Capsule
Each Capsule Contains: Amount Per Serving % DV
Phosphatidylserine Isolate 100 mg *
*Daily Value (DV) not established

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars

Quality product

Posted by Reviewer1128084 on Dec 19, 2012

I've been taking phosphatidyl serine supplements for years and this brand is the best! Double the price of other brands but really works.

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3 people found the following review helpful

Miracle pill

Posted by Reviewer2466342 on Jan 24, 2011

My doc recommended this, because I was waking up at 4:00 am for an hour then going back to sleep, or just waking too early, like going to sleep at 11:30 but waking at 5:30 am. This is supposed to regulate the adrenals' cortisol output so they don't wake you up too early. It works like a charm for me. I open the capsule and take half each evening, and sleep thru the night. (Most people take 1 or 2 caps.) I tried Source Naturals brand, but it didn't work. I don't know why; I think Source Naturals is a good brand. The only difference I can see is that the ingredient in Thorne is called "Phosphatidylserine isolate" and Source N just says "Phosphatidylserine".

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4 people found the following review helpful

great low exipient product you can trust

Posted by Reviewer1590629 on Jul 15, 2011

I was so pleased to find phosphatidylserine in a low exipient formula finally. I can react to some of the extra, and unnecessary exipient a lot of manufacturers put in their products, some of which have a cumulative effect. So its nice to have peace of mind there's nothing else added that may not be so good for me. I really reccomend this product.

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4 people found the following review helpful

THE BEST PHOSPHATIDYLSERINE product available. Period.

Posted by Reviewer2225055 on Feb 19, 2012

This product is superior in quality to ALL other PHOSPHATIDYLSERINE products; its active ingredient is 100% PURE PHOSPHATIDYLSERINE ISOLATE and it does not contain any synthetic fillers, such as STEARATE or STEARIC ACID. I have tried many, many brands of PHOSPHATIDYLSERINE and without a doubt this is THE BEST. I find that I only need to take 1 capsule (100mg) to receive even better cognitive and memory enhancing effects than much higher doses of other brands. Also, because it is PURE PHOSPHATIDYLSERINE it does not have the same potential for causing SIDE EFFECTS that the other brands do; for example, other brands also contain significant amounts of CHOLINE and PHOSPHATIDYLCHOLINE; wherein too much CHOLINE and PHOSPHATIDYLCHOLINE can cause or exacerbate ANXIETY and/or DEPRESSION; whereas, this product cannot do so, because it ONLY contains PHOSPHATIDYLSERINE, which allows one to supplement with any desired dosage of PHOSPHATIDYLSERINE without risk of SIDE EFFECTS due to SURPLUS CHOLINE occurring. Highly recommended!

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5 people found the following review helpful


Posted by 5278208926656040651 on Feb 04, 2015

Just what I needed!

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