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Scored forOutcome alternatives
Life Extension90 count • 90 servingsAvailable now$22.27$0.25 / serving4.7 · 1,552 ratings10 / day
11−83 pts from leader
#3778 of 7239 ranked for sleep qualityLeader · Source Naturals, Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets — 94
Why this ranks #3778 for sleep quality
- Evidence fitL-Tryptophan has moderate human evidence for this outcome.
- Dose fitL-Tryptophan at 500 mg sits below the studied 1000-3000 mg window.
- Price / serving$0.25 per serving — mid price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustSolid trust signals from buyer ratings, with room to grow.
Trade-offsDose fit is the weak spot on this listValue for money trails the rest of this list
The numbers · Sleep qualityWhat's inside
11
12
4
48
500 mgBelow rangebelow the studied 1000-3000 mg window
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