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L-Tryptophan Powder

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In stock

Price From: FROM $14.96

Ships today if ordered in the next 10 hours and 29 minutes!

L-Tryptophan Powder


  • Pure powder
  • Promotes mental wellness
  • Non-GMO
  • Taste

  • Mixability

L-Tryptophan is an essential amino acid, meaning that it must be derived from diet or through supplementation. It is needed in order to produce seratonin.


Serving Size & Timing

This supplement needs to be consumed in servings of 500mg up to three times per day. It should be taken with carbohydrate-rich foods.

Nutritional Information

Supplement Facts

Serving size: 500 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
L-Tryptophan 500mg *
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, soy, dairy, yeast, gluten, corn and additives.

As a dietary supplement, take 500mg (scant 3/8 tsp) up to three times a day, or as directed by physician.



This vegan-friendly supplement contains no fillers of any kind and is certified food grade. It should be stored in an area free from light, heat and moisture.


Tryptophan is safe as long as suggested serving sizes are adhered to. However, some rarer side effects include gastrointestinal discomfort, vomiting and nausea as well as loss of appetite. Taking too much of it may cause aggravating mental problems including confusion, anger and agitation and restlessness. Those who have been diagnosed with mental conditions such as depression or chronic anxiety should speak with a doctor before use of this supplement, especially if on other medications. Do not take Tryptophan with any other mood-altering drugs. Those who have ever been diagnosed with kidney or liver disease should stay away from amino acid supplementation of any kind until first discussed with a physician.


Due to varying import regulations, not all of our supplements are available to international customers. This product is restricted for sale in the following countries:

  • Australia
  • Austria
  • Germany
  • Italy
  • Netherlands
  • New Zealand
  • Norway
  • Sweden
California residents: Click here for Proposition 65 warning.

Customer Reviews

Real good.
The quality of the Tryptophan is high, better than expected. The price is low and the service. fast and professional. I recommend both the Tryptophan and *

On 4/27/2019 Matthew said...

Real good.
The quality of the Tryptophan is high, better than I expected and the service was fast and professional. I recommend both the product and Bulk Supplements, Com*

On 4/27/2019 Matthew said...

Great buy!
Great price for this size. Fast shipping. *

On 1/10/2019 Erika said...

The Straight Stuff
It's from Bulk Supplements, so you know it is the proper thing, and properly packaged.
Tryptophan doesn't taste great, but not as bad as some amino acids, so taking it as powder isn't an ordeal.
I have confidence in Bulk Supplements, what can I tell ya?*

On 11/8/2018 Benjamin said...

Great for Sleep
I am not sure where my ability to fall asleep went, but this product sure makes sleep happen.*

On 9/13/2018 Brenda said...

Great for Sleep and Mood!
I started seeking L-Tryptophan for sleep assistance and found other options for taking a capsule 2-3 times daily. After starting a 2-3 times daily regimen, I found it to help sleep. But, more importantly, it helped maintain a positive mood and peaceful disposition when taken throughout the day. However, the 500mg doses (2-3 times daily) left me feeling lapses in the positive effects. By opting for the powder, and packaging capsules with less of a dose to take more frequently thought the day, I was able to spread the positive mood effects to be continuous. Highly recommended for people with sleep issues - with positive mood enhancement when taken regularly throughout the day.*

On 9/6/2018 Dustin said...

This product works great with what we needed it for. Very fast shipping!*

On 8/10/2018 Ryan said...

Great Natural Sleeping Aid!
I had insomnia , used to spend lots of money on over counter sleep aid and none of them not help . Since I use Bulk Supplements L -Tryptophan every night ,I get my 7-8 hours restful sleep, wake up without feeling woozy or worry about bad withdrawal side effect. This product is natural,safe,no side effects and very afford for daily use and I have been using this for 3 years now and will continue to purchase from Bulk Supplements.*

On 7/4/2018 Yen Yen said...

Amazing Sleep Aide!
I ordered this product to add to my nightly tea, it has absolutely worked wonders for my sleep! I am so glad I took the leap and made the purchase!!*

On 6/18/2018 Mary said...

I find your l-tryptophan product to be an amazing anti-anxiety/anti depressant product that helps me relax into a deep dreamt sleep! Way better thsn pharma sleeping pills with only positive side effects! thank you!*

On 6/15/2018 david said...

This really helps me sleep!
I got this to try to get some sleep. I have a problem sleeping. This seems to be working so far! I'm actually dreaming again! Thanks, Bulk Supplements!

On 4/24/2018 Kathy said...

This Stuff Works
After 15 years of not sleeping more than 3 hours a night I am FINALLY getting around 6 hours a night. I have only been taking it a short while and I think it will get even better the more I use it!

Great company with GREAT customer service!*

On 4/19/2018 Tanya said...

Relieves Depression, Anxiety and Aids in Sleep
SSRI Antidepressants work by increase amount of Serotonin in the brain. Tryptophan is a precursor to Tryptophan and by adding it to my smoothie or green drink, I have alleviated my depression, anxiety and sleep better. The product is a very fine and light fluffy powder that does not mix easily so use blender or blender bottle. You may also put it under your tongue and drink 8 oz of water to wash it down. Excellent product! *

On 3/28/2018 DeAnne said...

Great Antidepressant as well as sleep aid
Tryptophan is a precursor to Serotonin and the way SSRI antidepressants work is to increase the levels of Serotonin in the brain. Another way to have this effect is to increase Tryptophan in diet, as it is a precursor to Serotonin. After 2 weeks of daily use, I feel less anxious and my depression has lifted. This product is a fine powder and does not mix well. I put it in my green powder drink and use a blender bottle to mix but some people just put it under their tongue and drink 8 oz of water with it. I highly recommend Tryptophan. *

On 3/28/2018 DeAnne said...

L-Tryptophan powder
I ordered this tryptophan powder to have it on hand in the event of possible increased 'down" moods as a result of significantly increasing my intake of collagen as I understand could happen from other peoples reports. I'm not sure this would happen with me, but if it should, I plan to take 1/4 to 1/2 teaspoon which I believe will increase my serotonin levels back to normal.
After some brief research, it seems that large amounts of supplemental collagen can, in some people, cause a decrease of serotonin, why I don't know and would be interested if other folks have experienced this.*

On 3/19/2018 Dorothy said...

Restless legs
My husband takes 2 double 00 capsules of this with a 50 mgs B-6 tablet every night , a tip from Doug Kaufmann. It has worked for over 5 years.
It saves us a lot of money being able to make the capsules and there are no other undesired ingredients in them now !*

On 12/4/2017 Karen said...

As with all orders, quick ship for clean and pure supps. Powders are especially helpful for testing and adjusting as I'm pretty sensitive to almost all supplements. *

On 10/20/2017 Maureen said...

Seems quality
Ordered this to see if it would help with my OCD due to boosting serotonin. I haven't noticed any alleviation of symptoms yet (only been a week) but I seem to rest better at night.*

On 9/14/2017 RAS said...

I've been taking this product for three nights and when I mix with applesauce it works great. Best sleep ever. Thank you BulkSupplements.*

On 8/18/2017 Joan said...

L Tryptophan
I'm very pleased with this product. It helps me fall asleep quickly and stay asleep. I highly recommend.*

On 7/22/2017 CRYSTAL said...

We are delightful that you sell theses product as it cost a lot on other websites and we use it everyday for sleeping and feeling better .
This is very important on a small budget ,
Thank you so very much
John *

On 7/9/2017 JOHN said...

improved sleep
I take 2000-3000 mgs nightly before bedtime and it helps me sleep better. Before, I would fall asleep ok, but then wake up and have difficulty getting back to sleep. But with the L-tryptophan powder, I usually sleep through the night. It's also helped with irritability/mood. Whether that's from the improved sleep or directly from the L-tryptophan I'm not sure, but it's a noticeable difference.*

On 6/18/2017 April said...

Finally, I got some sleep!
I've tried just about everything to get a good night's sleep and someone suggested l-tryptophan. I like Bulk Supplements products because I have multiple food and/or chemical allergies and their products are clean and pure.

The first night I fell asleep easily but woke up after about 3 hours as usual. I was disappointed but amazingly went right back to sleep. The second night I slept the whole night, the third night I went to sleep easily, woke up in about 3 hours but then went right back to sleep.

I haven't had the product longer than these 3 nights but feel confident it will keep working. Thank you Bulk Supplements for providing such a clean, pure product that works for me!*

On 6/1/2017 Dee Dee said...

5 star sleep aid
I purchased this for my wife who has a hard time sleeping. I had tried other natural products but they didn't seem to work well. After using the L-Tryptophan along with melatonin, she is finally getting restful sleep and waking up refreshed.*

On 5/29/2017 Daniel said...

Great for Brain Health
I used to have a lot of difficulty getting to sleep at night, had RLS for years and years and years until I was supernaturally healed 4-10-2014 of my multiplicity of medical issues (Mark 5:34-41, and Mark 9:23-24), and over the years have tried many products to help me get some sleep.

I had read all the reviews on L-Tryptophan Powder and decided to purchase a Kilo, even though I know that will last me a long time. And so, I put it on my list for the next time I made a purchase from My products arrived several days ago, and I look forward to realizing the benefits described by all the reviewers.

1 year ago, I purchased 2 pillows from and as soon as these sort of small pillows arrived, and I plumped them up in my dryer (the foam inside is shredded) I would fall into a deep, restorative sleep.

But, I also know my brain is still healing from 3 major concussions I'd experienced in 2014 during an 8 month period, besides the residuals of 4 previous concussions, and is still not totally healed. i.e. If I lift my head up, I can immediately get dizzy and must hold onto something to keep my balance.

I've read all the reviews on L-Tryptophan Powder and believe it is a good addition to the supplements I daily use. 80% of my small intestines were removed in 2004, so I have to rely on supplements to ensure my body works correctly. That fact plus my lifetime impact of 7 major concussions, leads me to believe one of the missing supplements from my daily list is L-Tryptophan Powder. The fact my body is considered 50% malabsorptive, and I truly cannot eat much food at all, with my calorie consumption less than 1,000 calories per day, it is crucial I keep a strong balance of supplements working in my body. I believe that I am missing a good balance of L-Tryptophan in my body. For, I understand from what is written here at Bulk Supplements, there needs to be adequate amounts of Vitamin B6 in the body. It also needs adequate amounts of Vitamin C, B9 and Magnesium.

But, recently, I've also found that inspite of my pillow from (I drag one around with me wherever I am) I am again remaining awake at night, and so, back to Melatonin, except it does have a sedative effect on me the next day, and I don't like that.

I purchased a kilo of L-Tryptophan Powder because I find this quantity gives me my products sufficient to last some time and is most economical for me. I will write another review after I've worked with L-Tryptophan powder for a while and let you know my thoughts and experiences. Besides, I LOVE to dream and have been a dreamer of fantastic dreams my entire life!


On 5/18/2017 Christine said...

Works Great
I have problems sleeping at night and a small dose of tryptophan helps me to sleep much better.*

On 5/2/2017 Patty said...

Bulk Supplements tryptophan is easily mixed in about two ounces of warm later. It works quickly to calm one's nerves and prepare them for sleep. Probably the best tryptophan I have tried at a reasonable price.*

On 3/18/2017 William Gebhardt said...


On 1/30/2017 CHRIS said...

A must-have
I started using this to help with insomnia, where I get to sleep, but wake up in the night. This, along with taurine, magnesium, and calcium, has helped. It's also helped me be less irritable, with better, more stable mood overall. I just put a scoop on my tongue and wash it down with water. *

On 1/11/2017 April said...

Works great! Very Pure!
This has helped both me and my husband a lot. Works well for irritability, calm sleep and mood. L-tryptophan is a precursor to serotonin in the brain. Would not be without it! *

On 12/26/2016 Shelley said...

Works great! Very Pure!
This has helped both me and my husband a lot. Works well for irritability, calm sleep and mood. L-tryptophan is a precursor to serotonin in the brain. Would not be without it! *

On 12/26/2016 Shelley said...

Lower Dose Works Better For Sleep
My wife and I found the following to be best for insomnia/sleep for the two of us, and split the drink in two, each getting one cup. One tablespoon Bulk Supplements Hydrolysed Collagen briefly dissolved in two cups very warm water, after which 1/4 teaspoon L-Tryptophan is stirred in. We use lowest setting on our Vitamix blender to stir. Then we let it sit for 30 minutes, stirring occasionally, so that the collagen and tryptophan will properly bond together allowing the formula to cross the blood brain barrier. This seriously intensifies the effect of the tryptophan. After 30 minutes we add two tablespoons of 100% Tart Montmorency Cherry Concentrate (from and gently warm on the stove. We usually sleep peacefully most of the night. When we tried a variety of higher doses we did not get the same quality or length of sleep. This 1/4 teaspoon tryptophan formula works best.*

On 12/8/2016 Brent said...

Helps brain and sleep
I slept 12 hours last night and feel great. No sleeping pill hangover. I did triple the recommended dose and drank plenty of juice with it. I think now I'm caught up on sleep I'll go back to a half teaspoon*

On 11/22/2016 William said...

Helps brain and sleep
I slept 12 hours last night and feel great. No sleeping pill hangover. I did triple the recommended dose and drank plenty of juice with it. I think now I'm caught up on sleep I'll go back to a half teaspoon*

On 11/22/2016 William said...

Second Review
Been taking for about a month now and it's still effective at putting me to sleep. Will continue to buy until something stops working.*

On 10/16/2016 Alex said...

I love Tryptophan
Chronic Stress (death of a parent, divorce, etc.) lead to Adrenal Fatigue and severe insomnia problems. Insomnia is so much better now with Tryptophan, Ornithione, Gabe and 5mg's of Melatonin. I fall asleep quickly and stay asleep until the alarm goes off the next day. It has made a tremendous difference in my health to sleep again. Bulk Supplements delivers top quality every time and I will continue to order.*

On 9/29/2016 Rhonda said...

Love it!!
I bought this amino as I have trouble sleeping at night. From broken sleep to trouble getting to sleep. I've been taking it every night for the past t nights and I've noticed a huge difference! I sleep better, more deeply, longer, and get to sleep faster. The increase in sleep quality has definitely helped me maintain my energy throughout the day. *

On 9/25/2016 Matthew said...

Legitimately helps me go to sleep at night, and makes me feel good otherwise.*

On 9/19/2016 Alex said...

A little-known but essential bodybuilding supplement!
I take L-Tryptophan because studies show that it not only increases sleep quality, but also significantly increases the absorption of amino acids in the small intestine. A couple studies even show enhanced endurance and body composition. This is a relatively unknown amino, but a must-have for any athlete/bodybuilder.
By the taste/texture of the powder, i know that this stuff is the real deal.*

On 8/27/2016 Lee said...

Nice for sleep
I take it daily before bed. It does offer a nice calming effect; good for getting to bed on time after a stressful day.*

On 8/11/2016 Tan said...

Great shipping and good quality.
I have noticed deeper sleep achieved when taking this before bed. Always remember never to take protein with any amino acid or else you dilute the effect if the amino acid.*

On 8/6/2016 Paul said...

I have been working with collagen type I and III, and am adding UC-II to the mix. Tryptophan is the missing amino acid in the collagen and this source is by far the least expensive I have found. Currently working with about 1 gram tryptophan to 1 tbsp of collagen. Sleep has been excellent. I'm sourcing several other elements from Bulk Supplements as well and am very pleased with the cost and purity of the items I select.*

On 6/14/2016 Walt said...

How it works
It works really good. When I started to take this product, I sleep better and my mood becomes better. And I like this in a powder. Thank you.*

On 5/27/2016 Maria said...

First Time User
I learned about this product from a dear friend who wanted to help me get a good night sleep. She sent me home with approximately 1/4 of a cup of the product (also from , which worked like a charm to get me to sleep. This was my first purchase after the loaner amount my friend gave me. The product I bought seemed to have worked better than her tryptophan in that I awake without drowsiness on this product, and this product had a fruitier taste than the powder she gave me.

I can take this product and awake refreshed without drowsiness, which I love. The zip bag was messy to open because I did not know that the product would not be sealed below the rip line. I transferred the powder to two jars so that I would not have to bother with the shipping zip bag, which did not seem to seal well. Otherwise, great product for no nonsense sleep support. *

On 4/21/2016 Danielle said...

Wonderful Product
Not there is a lab in my house, but this product seems to wonderfully deliver the intended effect without fillers. We have been using for about a week now, and the consistency has been fantastic. The only downside(which I'm not sure even really qualifies) is that the product zip lock style closure can be a bit tricky. Instead of struggling with it, we just fold over and use a binder clip.
Flavor is great, as noted by all family members who are using this product. I highly recommend.*

On 4/7/2016 Kimberly said...

possible sleep aid?
I received the supplement, but haven't tried it because I am trying to be more methodical about what I am doing, so I can have a better chance of telling what is doing what. Sleep is one of my top problems.

general suggestion: put the name of the supplement on the bottom of the label, because as you fold the bag down you can't see what it is any more.

On 4/2/2016 Lily said...

Works to increase Serotonin
I tried this product and have to say it works similar in effect as 5-HTP. Its not as strong, but definitely does work. This would be good for those who are sensitive to 5-HTP and need something to help them relax but with less side effects. *

On 3/28/2016 Gavin said...

Pure Quality Products,
Now days it is difficult to purchase supplements that contain the main ingredients without a lot of unwanted fillers.
All the products that I have purchased from Bulk Supplements are as pure as pharmaceutical grade, if not better.
I suffer from insomnia for 15 years and tried almost everything I can get my hands on, seen various doctors and have been prescribed strong drugs to no avail.
I have read a great deal on this condition, and found that a combination of L-Tryptophan Powder (3grams) with Motherwort Powder Root (3.5grams) right before I fall asleep on an empty stomach has been a God's sent, and greatly improved my sleeping habits.
Statistically one of five people suffer from some form of insomnia, I hope this information would be helpful to anyone suffering from this condition.
I only purchase natural supplements from Bulk Supplements, in my opinion they are the best you can find anywhere, and great pricing as a bonus. *

On 3/27/2016 Joe said...

Helps keep me level
I love this stuff, I found it to work excellently when I was still on caffeine, and discovered since eliminating caffeine I have to take a lot more to get similar effects. I take it for mood balancing, to prevent anxiety, irritability, and depression. It works great at irritability and depression, and reduces but doesn't eliminate my anxiety, I'm still working on that with dosages and adding in other supplements. I also compared this tryptophan to other brands and they were all inferior in one way or another, side effects and less effective. I won't be trying other brands any more, if it works why mess with it?*

On 3/23/2016 Rachel said...

satisfied customer
good quality...arrived on time...will buy again.*

On 3/23/2016 gordon said...

Great bargain
I love BulkSupplements clean and pure products and that it isn't "made in Chine" which is why I buy my Tryptophan powder from them. Great amount of product in the bag and will likely lasts months.

I notice more energy from Tryptophan so I find it interesting that people use it to sleep. Well I add it to my smoothie in the morning and I'm ready to hit the ground running. I onl take it once a day so far but will probably increase as the weeks progress.

I highly recommend this company and this clean Tryptophan powder.*

On 3/18/2016 Tom said...

I had taken tryptophan back in the day, but I forgot how well it works.
It became unavailable because of a listeriosis scare and I hadn't used it for quite some time.
I slept like a baby; and at my age that's unusual, ha, ha!
Sleep and recovery is part of the equation when it comes to getting results.
Try tryptophan powder and you will NOT be disappointed!
You have my unconditional BRO guarantee!

On 3/14/2016 ANTONIO said...

for sleep
I've been taking this for insomnia. I must say it tastes terrible! I put it into capsules and take 3 g at bedtime nightly along with 3 g l-glycine and some melatonin. Still don't sleep well, but better than if I don't take anything at all. I sure wish it would mix into a drink easily.*

On 2/21/2016 Gertrude said...

I like it
I'm pleased with this product. I just put a scant half teaspoon in my mouth and drink some water and swallow it down. It has a slight bitter taste that's only really noticeable if it takes more than two swallows to get down. The l-Tryptophan has helped improve my mood (less irritable) and helps me sleep through the night. I take it three times a day after meals.*

On 2/15/2016 April said...

Really works!!! : )
I started taking this to ease the effects of SAD which are quite noticeable by mid-December. I'm taking 1000mg at bedtime. I noticed a difference in improved quality of sleep immediately as well as improvement in the depression symptoms.*

On 12/21/2015 JA said...

Great as expected
I use about 3/4 tsp at bedtime with a little carbohydrate and works very well. I appreciate the option to get pure unpolluted supplements at your site. This particular product gives me intestinal gas and bloating no matter what the source or form. I have to take one or two Gas-X with it to relieve that problem.*

On 10/13/2015 jim said...

Helps me sleep and I love the fact that there are no icky fillers from dubious sources.*

On 7/27/2015 melissa said...

wonderful product
I received my order of tryptophan promptly and it was so easy to place the order. i have a busy schedule so it is frequently much easier for me to order online and have supplements shipped. also, since i use a supplements to enhance my well being and health i have found that ordering bulk is the best way to go to adjust dosages and it is the most economic by far.

tryptophan really helps me. i am a long time sufferer of insomnia and this supplement helps me as much as any prescription sleeping pill both with getting to sleep and staying asleep as waking up too frequently and too early have been problematic. whenever possible i like to use supplements rather than prescription drugs.

i have also found that tryptophan increases my energy--maybe because im getting good sleep! it also improves my moods and overall health.

your product is an excellent product. i tend to use or need a little bit higher dosage than whats available by capsules and a bit more than the 1/.8th suggested dosage. the primary reason i use bulk supplements for the ease of being able to adjust my dosages to my unique needs. i just mix the tryptophan with a very small amount of yogurt about an hour before bedtime and i'm off to dreamland. it really works!

thank you for a wonderful service!*

On 7/23/2015 electric said...

Excellent Product Fast Shipping
As always Bulk Supplements is timely with their shipping and the products are grade A. L-tryptophan is also a fantastic product that undergoes many metabolic pathways ie (tryptophan>5-HTP>NAS>Serotonin>Tryptamine or continue on to melatonin)

Also gives you pretty vivid dreams that sometimes may turn into nightmares if taken too close to bed.*

On 6/24/2015 Bryan said...

The missing link
I have been suffering from a low grade feeling of anxiety for a lifetime. I came across a book from Trudy Scott. She recommended several supplements. After taking the questionnaire , i realized that tryptophan might help me. It made a huge difference .A great calm has replaced the anxiety.I feel wonderfully relaxed. It also helps me sleep all night long. I need to take just a little. 1/8 tsp works fine for me.I highly recommend this supplement Thanks*

On 5/17/2015 madison said...

Did not know what to expect - I am not a big turkey eater. One thing I must say about Bulksupps - and that is the information blog annotations for their supplements really is a great time saver and life saver. After reading most of those I had a really big order, I decided to cut it in half and was left with still a pretty big order, and after I got the package and opened it and had my first drink - really regret cutting anything! I was feeling a cold coming on or some terrible malady and after the nice big drink I felt so good and THANKS to the Tryptophan, felt nice and sleepy too, since consuming all their products I feel better - and my sleep is way deeper and filled with dreams - gotta say, totally loving it and can't wait to order more! *

On 5/17/2015 Juan said...

Been using it for many years
This product was excellent quality and works very well for me. I have taken Tryptophan for many years for sleep problems. It quiets down the noise in my head so I can get into a more relaxed state to fall and stay asleep. It actually works best when you take something sweet to raise your insulin level - I prefer a tablespoon of honey. The insulin draws other proteins out of the blood stream, so tryptophan, which is a large amino acid, can have exclusive access to cross the Blood-brain-barrier where it is converted to serotonin. It helps to take it with Vitamin B6 which is needed for the conversion.

I am very happy to have found a great source for this indispensible product.*

On 5/14/2015 Karen said...

Excellent product. It has helped my husband to fall asleep quickly and stay asleep getting a good night sleep.
Am even taking it also for the same reason. *

On 4/21/2015 ANN said...

I purchased L-Tryptophan ten days ago to help my husband sleep better. it worked great the very first night. I am also taking it and I can recommend it. Excellent product *

On 4/21/2015 ANN PRIDE said...

Definitely Induces Drowsiness
It takes between 500-1000 mg on an empty stomach depending on how tired I'm feeling but it helps me feel slightly relaxed and not only helps me get to sleep quicker but also stay asleep during the night.*

On 3/16/2015 Jason said...

so very pleased with the quality of this product and the rapid delivery thanks we are so very happy and will order more in the future.*

On 3/10/2015 earl said...

Sleeping like a rock
Fast shipping, excellent packaging and much cheaper than the capsules. I supplement this to help with insomnia. I'd totally recommend this product to anyone with sleep issues.*

On 3/3/2015 Ray said...

Excellent quality.
I could almost instantly could tell a difference. I had been taking another brand in capsules and it helped but was very expensive. I am so happy I found a place I can buy what makes me feel good at a reasonable price!*

On 2/28/2015 Tawny said...

great sleep aid
Great product that works and you don't have to swallow a pill. Takes awhile to dissolve in water and no after taste. Would recommend this to anyone who has trouble sleeping. *

On 2/23/2015 Dan said...

This by far the cheapest, yet best product I was able to find on the internet. I love this product so much I need to make sure that I do not take to much. There are no fillers and you can see a crystalline glaze in it. THERE IS ABSOLUTELY NO TASTE, WHATSOEVER. Oh yes it is free shipping and on time, what is to dislike?

On 10/26/2014 Nathan said...

I got it fast like I always do. The product does not mix well. But, do not let that stop you . It tasted fine . The great thing about this company is you can tell the stuff is pure . I felt it within a few min it is not the same with when you buy some garbage off the shelf in GNC or other places. Plus it is super cheap and you know your not getting any fillers because you can see it ! I am, and will always order from this company because I do trust them and again super cheap. It did not make me sleep I only took 500mg I am going to try a 1000 tonight *

On 10/5/2014 John John said...

Good Product
This product has relaxing qualities. I would recommend it.*

On 9/30/2014 Kelli said...

clean and effective
Tryptophan is a great sleep aid with no side effects and with this product no fillers of any kind which is why i prefer to order here. more economical this way too.*

On 9/27/2014 Kevin said...

Sleep and Dreams
Bought this for my husband. He has been sleeping super well and having awesome dreams. Very happy!*

On 9/24/2014 SK said...

Ok so I wasn't sure about ordering this product but I did. I ordered it and it arrived very quickly. So I tried it and it works extremely well and I would recommend L-Tryptophan to anyone who needs it. The product is top notch pharm grade and I would definitely order from here again.*

On 7/9/2014 Matt said...

I must say that the order was shipped and received promptly in 3 day on delivery. I only took about 350mg just bed time and awaken fresh in the morning. I will be increase the dosage and see how I feel. At this point I would say that BulkSupplements prices, customer services, delivery and information about their products is above satisfaction.*

On 7/8/2014 melkan said...

I am fortunate to have found BulkSupplements on Amazon. I am amazed with the purity and quality of all the products I have bought.
L-Tryptophan is the latest. I have found everything pure and of top fillers.*

On 5/14/2014 Charis said...

extremely satsfied
This product is great! Pure and does exactly what its meant to do! I took 1gram before bed and awoke refreshed and in great spirits , I really can tell the improvement in seretonin In 24 hrs.*

On 4/19/2014 stephanie said...

really effective. I regularly use this product and would not like to be without it! great price too~*

On 3/12/2014 gena said...

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