Pure Original Ingredients L-Tryptophan, (100 Capsules) Always Pure, No Additives Or Fillers, Lab Verified

Good price for the quantity

Works great but swallow it all the way down with lots of water. I had the foulest burp of my life when it got stuck halfway down. I would still buy this product again because it works to get me to fall and stay asleep. Just want to forewarn even though you'll figure it out anyway.

This product isn't always available on amazon.

While it does still seem to work, I'm a little put off by the smell. The smell is likely from indole derivatives, a substance produced in the degradation of tryptophan.I rather wonder to what level the contamination is present. If it is in fact indole derivatives, and if they are in sufficient quantities, they will actually work against the l-tryptophan in the body.Oh, and the smell? Unfresh kitty litter. Indole is related to scatole. Scatole is a molecule responsible for the smell of feces. It's not quite that bad, though.

This tryptophan works fine, but it really smells. Like chemicals, in my opinion, but my husband says it smells like perfume. Well, perfume is a chemical, but the other products I take from this manufacturer don't have a smell at all.In order to be safe, I'm not taking this tryptophan anymore.

Great price. Started working in only three days. Helps to get you ready to go to bed. Good price. No unpleasant odor or burping. Easy to swallow. Would recommend.

For what ever reason this product made my thoughts negative and overall I felt anxious...

I have been using L-Tryptophan for a long time. This one is by far the best one among all that I have used.