BulkSupplements.com L-Tryptophan Capsules - Tryptophan Supplement, L-Trptophan 500mg - Amino Acid Supplement, Gluten Free - 1 Capsule per Serving, 240 Capsules (Pack of 1)

500 mg improves my sleep when taken before bed. Both falling asleep sooner and deeper more quality sleep., 1000 mg has a bit of sleepiness the next day. So, I know it is working and has quality behind it. I stick to the 500 mg. My psychoactive meds have a secondary serotonin agonist effect already and I eat my daily RDA of protein (where you naturally get it from). So, I am not deficient in tryptophan. As such, I don't see additional mood benefits from it beyond what my meds already do. But, others may find benefit there even if I do not, and may support meds that affect serotonin or can benefit from a potential increase in it.

I like Bulk Supplements. Good quality control and potency for a reasonable price.The dosage is perfect and really helps improve the quality of your sleep. Unfortunately, after several days of use, I developed severe headache and fatigue. I looked through my geneticlifehacks DNA analysis to understand what was happening. I discovered I cannot use Tryptophan because I have 2 homozygous ACMSD mutations which results in a lack of a crucial enzyme. The tryptophan isn't metabolized to seratonin and niacin, it takes an alternate pathway and becomes Quinolinic Acid, a short lived but potent neurotoxin. Long term, it contributes to a prolonged inflammatory response. It's a shame, because I thought I found the solution to my insomnia, but it wasn't meant to be.

I’ve been taking L-Tryptophan for a few weeks, and I’ve noticed a real difference in my sleep and overall mood. I fall asleep more easily at night and wake up feeling more rested and refreshed in the morning. I also feel a bit calmer and less stressed during the day, which is a nice bonus. The capsules are easy to swallow, and I haven’t experienced any side effects. It feels like a gentle, natural way to support both sleep and emotional well-being. I would definitely recommend it to anyone looking for a safe supplement to help with sleep and relaxation.

Didn't realize that this was allowed back in the market after being banned years ago. This stuff is great. Helps me get to sleep much better.

Great stuff. Combine with NAC: better sleep.

The stuff is a game changer for my sleep!

I grabbed these to help with nocturia, but sadly not effective in my case.

Sleep quality: I have issues with winding down. “Wired & tired” they call it. I take one 500mg pill about 2 hours before lights out. If I’m still revved a second one does the trick shortly before my usual 5mg dissolving melatonin and I’m out like a light. I don’t wake up in the middle of the night. No morning grogginess. Why did you pick this product vs others?: I trust this brand - I use other Bulk products. Price was good.