Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Cart Total:
Customers Also Bought:

iHerb Customer Reviews



Savings of: £7.09 (41% off)

Write a Review

Sorry, this product is no longer in stock.

  • Jarrow Formulas uses exclusively the Tryptopure brand of Tryptophan, manufactured by Ajinomoto of Japan.
  • Reviews | English
    Sort By

    works like a charm

    Posted by Reviewer1166068 on Aug 16, 2008

    I've tried other brands with TryptoPure, and even very pricey Regent grades, and they didn't work anywhere near as well as this Jarrow brand. As a hard-core insomiac for over a decade, I've had to use various sleep aids and then Lunesta when it became available in order to sleep. Not any more. I can take two of these capsules on a empty stomach at bedtime and get quality sleep! When I wake up in the middle of the night, as I always do anyway (even on lunesta), I take one tablet and before I know it, can go back to sleep quickly. Seriously, I never thought I would get back my ability to get good sleep, something that moost people probably take for granted. I will never use another brand of tryptophan, and iHerb's prices and service can't be beaten!! Thank you Jarrow and thank you iHerb!

    Was this review helpful to you?

    Cheapest price for Tryptopure.!

    Posted by Reviewer1386519 on Nov 20, 2008

    Jarrow has done it again with a pharmaceutical grade Tryptopure product that beats the competition on price. I love Jarrow products.

    Was this review helpful to you?

    Excellent results.

    Posted by Reviewer2245885 on Jan 13, 2010

    Very pleased. Definite improvement in mood,outlook and sleep patterns. Have quite a bit of longterm experience with SSRI and SNRI antidepressants and other alternative therapies-st. johns wort,5 htp,fish oil,etc... I take 4 of these( L Try) at bedtime with the co-enzyme p 5 p version of b-6 50 mg (w/orange juice). NOW Foods makes the one I use. I also take low dose 5 mg Lexapro and I know for myself the L-Tryp definetly has a beneficial,additive effect w/out so many of the typical side effects associated with SSRI therapy. Also take magnesium,Vit C, B complex,multi vitamin... Grateful and very pleased.

    Was this review helpful to you?

    Excellent Quality L-Tryptophan

    Posted by Reviewer2926042 on Apr 10, 2009

    1 capsule before bedtime has cured my insomnia. Anymore than 1 capsule can cause nausea and stomach cramps.

    Was this review helpful to you?

    safe & effective

    Posted by alloriginal on Feb 19, 2014

    By increasing seratonin levels in the brain, L-Tryptophan is a safe and effective aid for sleeping and mild depression. It is best used at bedtime on an empty stomach, preferably with a small serving of carbohydrates (I take a sip of orange juice). Start with one per night and work up to three if necessary. Click my user name (alloriginal) to access dozens of helpful reviews!

    Was this review helpful to you?

    can take tryptophan

    Posted by Reviewer2543360 on May 06, 2009

    I use to take tryptophan years ago for sleep ,it allawys worked great. Recently tried Jarrow L- Trypto. Made me sleep through the night but feel druged for half the next day, I mean bad ,like poisoned. no matter what time of day I take it with or without food same result. Don't know if the formula has changed or its some change in my chemistry.

    Was this review helpful to you?

    Knocks me out

    Posted by Reviewer1075233 on Jan 10, 2010

    In terms of any kind of insomnia, one pill will knock me out quickly, surprising how fast. However the next day I feel very heavy, a little drowsy, and a bit foggy through the morning. I havn`t noticed any kind of `mood enhancing` effect, but the physical heaviness I get the next day prevents me from being in much of a good mood. I was interested in this primarily to aid with depression, but it makes me way too tired/heavy to be taken regularily and function mentally at 100%.

    Was this review helpful to you?

    Good Supplement

    Posted by Reviewer2816446 on Mar 11, 2010

    One of the few supplements I've tried that actually works. I find that it calms me down and allows me to focus more easily. I have personally obtained best results by taking it on an empty stomach.

    Was this review helpful to you?

    One of the Best Tryptophan products on the Market!!

    Posted by Reviewer2038082 on Feb 02, 2012

    I have used Tryptophan for years and Jarrow is one of the best brands I have used! Ajinomoto is the company to look for! I tried a less expensive brand with another type of Tryptophan and was not nearly as happy with it as I am with this product. Just so people know Tryptophan is a pre-curser to Melatonin. If you take B-6 with Tryptophan and some juice or sugar it will convert to seratonin and finally to melatonin. Tryptophan is used for sleep aid, depression, and pain relief. As odd as it may sound Tryptophan does help reduce pain, can help lower the incidence of Migraines as well. The dose depends on the person. For me, 3 work great. I have tried Melatonin with Tryptophan and it makes me too drowsy the next day. This is a wonderful product delivered the next day!! Thanks iherb!!

    Was this review helpful to you?


    Posted by Reviewer2770454 on Nov 22, 2009

    love this product--allows me to relax and fall asleep and stay asleep--if i should wake--i am right back to sleep

    Was this review helpful to you?

    Items 1-10 of 83 total

    « Previous | 1 2 3 4 5 | Next »