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iHerb Customer Reviews



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  • Jarrow Formulas uses exclusively the Tryptopure brand of Tryptophan, manufactured by Ajinomoto of Japan.
  • Customer Ratings

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    Reviews | English
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    better sleeps

    Posted by Reviewer2495123 on Jan 19, 2012

    I've always been a poor sleeper. This product helps me get better sleep. I take to empty stomach with 800mg magnesium every night.

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    helps sleeping

    Posted by Reviewer2679426 on Nov 30, 2011

    Taking this with melatonin and really has helped with sleeping soundly and not waking up as much!

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    More Relaxed

    Posted by Reviewer1800343 on Aug 24, 2011

    I take this product at night with 5-HTP and Melatonin. It works relatively quickly. I do feel more relaxed when I go to bed and even when I do wake up, I am able to get back to sleep. I do think I am feeling less agitated and panicky, but is more likely to do with the 5-HTP than the Melatonin or this product.

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    Jarrow L-Trytophan

    Posted by Reviewer1374199 on May 13, 2011

    Just read an article that said it was a myth that warm milk helps you sleep due to the tryptophan. Maybe it just doesn't have enough because 2 of these when I wake at 3-4am put me right back out.

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    Posted by Reviewer1481271 on May 07, 2011

    Its great product... Help me in better sleep :)

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    Posted by Reviewer1243341 on Apr 12, 2011

    Can't do without. Added this to my daily regime and notice within days that I was better able to handle stressful situations.

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    A Life-saver!

    Posted by CarolynJanson on Mar 14, 2011

    So pleased to realise I could get Tryptophan again - I thought for years that it was no longer available. It is an excellent natural sleep aid. I recommend it to anyone who has difficulty falling asleep.

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    Great item!!

    Posted by Reviewer2025826 on Jan 29, 2011

    I loved it!!

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    Posted by Reviewer3095160 on Jan 08, 2011

    great choice for a positive mood

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    Good product

    Posted by Reviewer2168977 on Dec 22, 2010

    Good product. I am trying it before 5-HTP to see if I can handle it.

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    Items 11-20 of 83 total

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