iHerb Customer Reviews
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Big fat capsules overbloated with filler.
Posted by Reviewer1485718 on Oct 29, 2011
Phosphatidyl Serine is a great supplement for memory enhancement, but this product has an unnecessary amount of filler in it and the capsule is larger than it needs to be. Jarrow PS100 (120 caps) has the same amount of nutrient in it, with a smaller capsule. Both are equally effective. Staatsburg, New York
Posted by Reviewer3362783 on Jul 21, 2011
Dementia runs in my family and so I am taking these pills in order to try to avoid the same outcome. I've only been taking them for about 6 mos or so, but I definitely notice a big difference. I can remember details much better. The thought processes are quick. I've had people comment to me that I have a fantastic memory. Guess that means they are working. I'm 61 and I get frustrated with people my own age cause they forget things and I'm always having to bring them up to speed. It's good to know my mind is still sharp.
Posted by 5594108344231563819 on Jan 17, 2014
Fast shipping, works excellent for improving memory. It lower cortisol levels which is usually good, not for me as I have already lower and high doses causes insomnia and drowsiness, still at low doses it works as it should
Posted by sweetheart on Jan 18, 2013
This product often saves my days. It's very calming and helps me concentrate. Very good price, too!
Boosted my memory
Posted by Reviewer1172432 on Nov 06, 2012
Both me and my husband feel that this product does boost memory. Now I can recall things a lot better and don't have to wonder "Did I do this / where do I put my stuff." I've also tried the Country Life brand, which I think has a even greater effect on me than Doctor's Best, but it's siginficantly more expensive. Also neither brands help me in fighting brain fog, lose weight or sleep better. I sleep better only after I started taking a 40-minute walk at least 3 times a week since a few weeks ago, so I guess taking supplements is only part of a healthy lifestyle. This brand does contains soy.
Posted by WrensNest on Mar 16, 2013
It has come to my attention that this product is made from soy. I am changing to the Now version. It cost almost twice as much, but soy is just poison for the body (see Dr. Mercola). Somehow forgot to check this product.
Posted by Reviewer1908266 on Jan 25, 2011
I can't take softgels filled with soy oil, which many of the phosphatidyl serine products use. Although this product is derived from soy, so far the capsule is working for me. My brain focus was better from the first time I took it, and I sleep more deeply. I have to take two at breakfast and lunch, and three at supper. But I'm very grateful that so far I seem to be tolerating this very well.
Posted by Reviewer2525926 on Sep 04, 2014
I use this sometimes when I'm very tired or stressed, because it makes me much more calmer, balanced and it clears my head. However, it's too expensive for me to take 2-3 times a day, which I would really like to do. It's really very good.
I can't tell it's effect
Posted by 4946238255411865607 on May 28, 2015
I take 1 after meal as a precaution. I am ok. My mind is clear. Memory as good as usual. No side effect. I will continue to take
Doctor's Best Phosphatidyl Serine 100mg DRB-00220
Posted by Reviewer3099879 on Nov 16, 2011
Keep taking the Phosphatidyl Serine in the hope that it would have prevented my memory lapses due to my Pyroluria but maybe they would be a lot worse if I didn't take this product!!!