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iHerb Customer Reviews



Savings of: $19.21 (48% off)

  • Doctor's Best uses exclusively the Tryptopure brand of tryptophan, manufactured by Ajinomoto of Japan.
  • Customer Ratings

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    Reviews | English
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    Made my own capsules, works great.

    Posted by Reviewer1087550 on Oct 01, 2009

    Produces drowziness and gentle sleep.

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    Excellent result for sleep

    Posted by Reviewer1999801 on Sep 05, 2009

    I bought this for my daughter in law who was having trouble sleeping at nights with her 2 month old baby. Great result

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    Doctor's Best, Best L-Tryptophan Powder, TryptoPure 50 g

    Posted by Reviewer3125771 on Aug 06, 2009

    This is truely a great supplement for people who need to restore their sleep patterns or just want more restfull sleep. It also helps out with the overall feeling of well-being.

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    Posted by Reviewer1633358 on Jun 22, 2009

    Good product. Works very well as sleep aid when needed.

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    Posted by francesjoan on Jun 10, 2009

    Works great. I use vitamins b6,amino acid lysine, niacin and some sleepy herbals with it. Seems like I dream more. Will reorder often.

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    Posted by Reviewer1706131 on Mar 24, 2009

    I used this instead of 5-htp for a week. Depression crept in, so I switched back to 5-htp. Will try it again during less stressful times. Tryptophan is supposed to be safer in the long term than 5-htp. The stuff is bitter, and fly away powdery. This is the only brand I have tried.

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    6 people found the following review helpful

    Works well but...

    Posted by Reviewer3297256 on Mar 02, 2009

    It works well but it's a little bitter so you really need to mix it into apple sauce or something w/similar texture if you don't drink fruit juice. I'm going to put the rest into my capsule maker.

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    L-Tryptophan 50 g

    Posted by Reviewer2888129 on Mar 02, 2009

    I wasn't paying enough attention when I ordered this product. Previously I've ordered from you, and used Doctor's Best L-Tryptophan Powder USP Pharmacetical Grade 100 grams. The price was similar, and I use a similar amount each night. Therefore, I am paying about twice as much for the new to me product. I hope that in the future you will again offer the 100-gram product.

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    6 people found the following review helpful

    Excellent product

    Posted by Reviewer3229507 on Dec 27, 2008

    This is an excellent product, especially for the proce.

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    Posted by Reviewer2083842 on Dec 11, 2008

    Seems to help me sleep. It doesn't dissolve as well as I would like in water. I will try it in a warm liquid in hopes that will work better.

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    Items 21-30 of 53 total

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