New To iHerb?

Customer Reviews

Doctor's Best, Best L-Tryptophan, Tryptopure, Powder, 50 g (Discontinued Item)

$20.78
$39.99
Savings of: $19.21 (48% Off)
4.2 out of 5 based on 56 reviews
Write a Review
Customer Ratings
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
Reviews 4-star
Sort by

Items 1-5 of 8 total

« Previous | 1 2 | Next »

Great value

2 people found the following review helpful

Posted by Reviewer1003688 on May 23, 2008

Purchased at iHerb

Now only half the tryptophan for the money. They are selling a 50 gram package for the same as the 100 gram used to cost!!!

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Tryptophan, a good product

1 person found the following review helpful

Posted by Reviewer1572086 on Dec 11, 2007

Purchased at iHerb

This stuff is really good, and helped me sleep the first couple times I used, it. It seems to have a tolerance level you hit then it doesn't have the same effect, so you really can't rely on it nite after nite to help you sleep. Good stuff to have around though.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Hopeful in Canada

1 person found the following review helpful

Posted by Reviewer2041739 on Mar 27, 2010

Purchased at iHerb

I have only using L-Tryptophan Powder for 2 weeks, so I still looking for it to take long term effect. However I have had a reduction in anxiety and erratic eating.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Best L-Trytophan Powder

Posted by Reviewer2069206 on Apr 03, 2011

Purchased at iHerb

I found this product pretty effective for helping to get to sleep.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

L-tryptophan

Posted by Reviewer1201926 on Oct 10, 2007

Purchased at iHerb

I'm a chronic insomniac and I started taking 2g an hour before bed, on an empty stomach, a week ago. Already, I'm sleeping better and I am no longer struggling through the days, yawning continuously. (my sleep hasn't been perfect, hence the 4 star rating, but maybe I haven't been taking it long enough) Powder is difficult to mix, however it doesn't taste too bad.

Was this review helpful to you?

Report abuse

Note: iHerb does not imply any medical claims from this review. Disclaimer.

Items 1-5 of 8 total

« Previous | 1 2 | Next »

iHerbĀ® is a registered trademark of iHerb, Inc. Trusted Brands. Healthy Rewards. and the iHerb.com Trusted Brands. Healthy Rewards. Logo are trademarks of iHerb, Inc.


Disclaimer: Statements made, or products sold through this website, have not been evaluated by the United States Food and Drug Administration.
They are not intended to diagnose, treat, cure or prevent any disease. Read more »


Eco Friendly Initiatives