Customer Reviews

Source Naturals, L-Tryptophan, 500 mg, 60 Capsules

$12.31
$21.98
Savings of: $9.67 (44% Off)
4.4 out of 5 based on 99 reviews
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Items 11-15 of 94 total

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great product

3 people found the following review helpful

Posted by Reviewer2137824 on Feb 03, 2009

Purchased at iHerb

really helps me wind down and fall asleep, especially when my mind is racing.

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Sleep well.

2 people found the following review helpful

Posted by Reviewer1729990 on Sep 23, 2010

Purchased at iHerb

Very effective for me for anxiety and sleeping (with 5 HTP).

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Helps restore serotonin

2 people found the following review helpful

Posted by Reviewer1020169 on Mar 15, 2011

Purchased at iHerb

We find that taking even one of these on an empty stomach in late afternoon PLUS having a bedtime snack of complex carbs with NO PROTEIN not only improves our sleep, but also helps with a brighter outlook the next day. We read in a book by K. DesMaison that eating tryptophan rich foods (especially animal protein) during the day then having the complex carb bedtime snack raises levels of serotonin while we sleep. It's something about the glucose helping the tryptophan cross the blood brain barrier, and tryptophan is necessary for serotonin and melatonin production. We just can't seem to eat enough meat most of the time so we take the tryptophan. I don't really understand all that biochemistry, but it works. It took a week or so of being consistent before we started seeing consistent results. It's well worth the price and far better than taking sleeping pills or Prozac! Hallelujah!

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This works well for me

4 people found the following review helpful

Posted by ellelisw on May 23, 2009

Purchased at iHerb

I've been a restless sleeper for a long time and have tried many products to help. Tryptophan has brought the best results... I can fall asleep and sleep well without feeling "hungover" in the morning. The side effect is I'm more refreshed, calmer and happier throughout the day. I couple this with L-Theanine and/or relora when I'm especially stressed. I don't use it every night but I do find that, if I don't take it on a regular basis, my restlessness and sleeplessness return and I'm more stressed during the day. I've tried other labels for tryptophan, but of the brands iHerb carries, Source Naturals has been the most consistently potent and effective for me. Plus, the price cannot be beat.

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Great!

1 person found the following review helpful

Posted by Reviewer2165701 on Aug 23, 2008

Purchased at iHerb

I'm so thankful for this product. I sleep much better with this product and no side effects. I love it!

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