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Swanson Ultra

L-Tryptophan Tryptopure 100% Pure Pharmaceutical Grade

Swanson $19.99
Retail $28.49
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Veg Caps Size:
OO, Pill Size Guide
500 mg 90 Veg Caps

"Taking 2 Tryptophan before bed helps me tremendously!! I fall asleep within 30 minutes and sleep all night. When I wake up in the morning, there are no after effects and I'm ready to get up." ~ product review by feelingood

  • An effective, natural sleep support supplement

  • 100% pure, pharmaceutical quality from a vegetarian source

  • Promotes healthy serotonin levels

It's back, and better than ever! L-Tryptophan is a precursor to serotonin, and it's powerfully effective when used properly. By supporting serotonin levels, L-tryptophan not only helps us fall asleep and stay asleep, but it also promotes mental health and provides dietary support against nervousness and tension. TryptoPure L-Tryptophan from Swanson Ultra is the purest pharmaceutical-grade tryptophan on the world market. It's produced through a natural fermentation process from a vegetarian source, using the most precise standards for safety and quality assurance.

Product Label

Supplement Facts

Serving Size 1 Veggie Capsule

  Amount Per Serving % Daily Value
Ajinomoto TryptoPure® L-Tryptophan (100% pure pharmaceutical grade L-tryptophan) 500 MG *

*Daily Value not established.

Other ingredients: 100% pure vegetable source cellulose (vegetable capsule).

Suggested Use: As a dietary supplement, take one veggie capsule with water 30-60 minutes before sleeping. For maximum benefit, take two veggie capsules.

WARNING: Do not take this product if you are taking a prescription antidepressant or if you are pregnant or nursing. Consult your healthcare provider before use if you have a medical condition or if you are taking any prescription medications.

AjiPure® and TryptoPure® are registered trademarks of Ajinomoto Co., Inc.

Terms and Ingredient Definitions

Swanson Ultra L-Tryptophan Tryptopure 100% Pure Pharmaceutical Grade Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

L-Tryptophan Tryptopure 100% Pure Pharmaceutical Grade 4.5 5 52 63
natural sleep aide this helps me relax so i can more easily drift into sleep September 9, 2013
Helps you relax I take this at bedtime and it helps me relax so I get to sleep quickly. Sometime I use it in the day when I feel stressed but primemarely at night. I recommend it. July 3, 2013
Just What My Body Needed This product has helped me so much in fighting feelings of stress. I also take L-theanine. Everyone's body is different, but these two together are just what my body needed. May 6, 2013
Great sleep aid It's so much easier than making a turkey sandwich at bedtime! April 5, 2013
Good value A quality product for a good price! March 18, 2013
Very natural. L-Tryptophan (2 capsules) helps me fall asleep very naturally, stay asleep longer, and I can get up in the morning without feeling drugged and without any dry-eye symptoms, which I get with melatonin. October 29, 2012
Not sure about this stuff... Well, I've been using L-tryptophan for about 9 days now. I have a lot of trouble sleeping and I have to say this stuff really did help. So why the bad review? Well, in the first few days of taking the supplement, I noticed a cough and just a few days ago, I noticed some hair loss. I don't take any other medications, so I started to do some research on the internet and found that these can in fact be side effects of taking L-tryptophan. Unfortunately, I am going to have to discontinue use...makes me sad, because I actually was finally getting a good nights sleep. July 26, 2012
Couldn't sleep After not being able to sleep and watching that clock hour after hour I decided I had to try something. I order AjiPure L-Tryptophan with the hope that it would put me to sleep like a turkey dinner does. I have been using it for about 2 weeks now and I have had only 1 night that I haven't slept well. Taking AjiPure L-Tryptophan is that only thing that I have done different. I am very happy so far with this product!!!! May 24, 2012
Continuous Sleep Get your tryptophan without eating a turkey sandwich or drinking milk. I was not a good sleeper unless I ate turkey or drank milk because they both contain tryptophan. Now I can take a capsule and sleep good without the disturbances of late-night food or drink. April 14, 2012
Great product. Easy to purchase, always on time. December 27, 2010
great product for the price very effective....over all mood improvement November 2, 2010
Heavenly sleep This L-Tryptophan is very effective in promoting sleep and staying asleep. October 2, 2010
your best product to date I have recommended this L-Tryptophan to many friends and family with great results every time. Much better nights sleep. Gary October 2, 2010
The best!! At times I have a difficult time falling asleep or staying asleep the entire night. Taking 2 Tryptophan before bed helps me tremendously!! I fall asleep within 30 minutes and sleep all night. When I wake up in the morning, there are no after effects and I'm ready to get up. This is by far the best I have tried to help with sleep. September 13, 2010
great for sleeping this product is fabulous for sleep. i take 2 and sleep very well, i only wake up once or twice and go right back to sleep July 24, 2010
Excellent product This has yet to be the best sleeping aid ever. The price is reasonable and this product actually works for me very well. I haven't felt so calm, relaxed in a long time. May 19, 2010
A Must Have in Any Household This additive free, pharmaceutically pure serotonin precursor has made my habit of obsessing over minutiae a thing of the past. Swanson, I can't thank you enough for this exceptionally priced product! May 1, 2010
i love this i have to get up at 300am to go to work and its hard to go to sleep early. this product really helps me to get a good nights sleep. i only take it the nights before i have to go to work the next morning. February 25, 2010
L=tryptophan excellent product. All my family use this on a daily basis. January 26, 2010
Still Awake and Waiting So far after 3 weeks I haven't seen any results from taking one tablet at bedtime. I'll start taking two and see if that helps. January 25, 2010
Gentle sleep aid Having been a poor sleeper since birth, I have tried many different supplements in hopes of improving my sleep. L-Tryptophan ranks among the best (Valerian is okay also but I prefer L-Tryptophan). 1-2 capsules 30-60 minutes before bedtime relaxes me and makes me naturally sleepy (as long as I am not doing anything too energetic). If I wake in the middle of the night and cannot fall back asleep, I can take another capsule without feeling groggy in the morning. Great stuff. January 23, 2010
catch some zzzz's I find I wake less frequently during the night with this product. Since I have to take two of them, it is a little costly. But I couldn't be without it, so definitely worth the price. January 13, 2010
This is a good product I think it does help with mood and to rest better at night. I notice a disruption in these things when I am not taking it. January 1, 2010
Helps me get to sleep Tryptophan has helped me get to sleep and what a boon that is. AjiPure has some of the best amino acids on the market and that is what Swanson sells. December 31, 2009
wonderful I love this product. For the first time in years, I get a whole nights sleep. Thank you so much. December 11, 2009
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