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Product Reviews

Source Naturals L-Tryptophan -- 500 mg - 120 Tablets

Mood Relaxation Sleep. The essential amino acid L-Tryptophan helps support relaxation restful sleep and feeling better. It plays a part in the synthesis of both melatonin and serotonin hormones involved with mood and stress response. L-Tryptophan also supports immune functions because it is the body's precursor to the kynurenines that regulate immunity. If needed L-Tryptophan converts to niacin in the body which supports circulation a healthy nervous system the metabolism of food and the production of hydrochloric acid for the digestive system. Source Naturals® L-Tryptophan is extremely pure and is regularly tested to ensure the highest standards of quality. Suitable for vegetarians and hypoallergenic.
Overall rating:
5 / 5
5
 / 
5
(5 reviews) 5
Open Ratings Snapshot
Rating breakdown 5 reviews
5 Stars
5
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
5 out of 5(100%)customers recommend this product.
Customer reviews for Source Naturals L-Tryptophan -- 500 mg - 120 Tablets
Review 1 for Source Naturals L-Tryptophan -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
fromNJ
Gender:Female
Helps you get to sleep.
 April 23, 2015
" I just take one or two at bedtime, and conk out like a light. I have to get up in the middle of the night to take medicine, turn on the light etc. and my sleep is disrupted. So I take another one at this time if I'm not able to sleep. I usually fall back to sleep fairly quickly. Very good product. No side effects for me. Happy with Vitacost's service all the way around. "
+1point
1of 1voted this as helpful.
Review 2 for Source Naturals L-Tryptophan -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
fromNYC, NY
Age:25-34
Gender:Male
perfect to get more out of your nights
 April 14, 2014
" This is a great product. You can feel it within an hour after take. It relaxes the body in a very natural way. I used to wake up from time to time feeling very grumpy and low energy. Not anymore. Even if there might be some interruptions within the night, I get more rest during the moments of deep sleep. "
 
Other Vitacost Products I Would Recommend
 
+2points
2of 2voted this as helpful.
Review 3 for Source Naturals L-Tryptophan -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
Value:
5 / 5
5 / 5
Quality:
5 / 5
5 / 5
Effectiveness:
5 / 5
5 / 5
Great Product
 June 2, 2012
" I have trouble sleeping. Used this product years ago until it was taken off the market by our government. It's back and better than ever. I use it every night, twenty minutes before I go to bed. I sleep the whole night through. I wouldn't be without it. "
+3points
4of 5voted this as helpful.
Review 4 for Source Naturals L-Tryptophan -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
Value:
5 / 5
5 / 5
Quality:
5 / 5
5 / 5
Effectiveness:
5 / 5
5 / 5
fromIllinois
Age:45-54
Gender:Male
Referral source:Physician
About time
 August 2, 2010
" After nearly 20 years of not being able to get L-tryptophan in this country I am delighted and surprised that it is available again. So far I am happy with this product and am sleeping better. I also take a B complex vitamin along with the L-tryptophan because many years my Dr. said it helps aid in the production of serotonin. "
+5points
5of 5voted this as helpful.
Review 5 for Source Naturals L-Tryptophan -- 500 mg - 120 Tablets
Overall rating:
5 / 5
5 / 5
Value:
5 / 5
5 / 5
Quality:
5 / 5
5 / 5
Effectiveness:
5 / 5
5 / 5
frommyrtle beach, SC
Age:45-54
Gender:Female
Daily supplement usage:6+ supplements daily
Referral source:Other
Reason for usage:Specific health concern
Duration of use:Less than 30 days
good product
 October 29, 2008
" It is easy to swallow caplet form. I've noticed that I'm sleeping better and my overall mood has improved "
+3points
3of 3voted this as helpful.