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Scored forOutcome alternatives
NutraBio1.5 8 • 30 servingsAvailable now$44.99$1.50 / serving4.6 · 728 ratings3 / day
31−63 pts from leader
#2878 of 7239 ranked for sleep qualityLeader · Source Naturals, Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets — 94
Why this ranks #2878 for sleep quality
- Evidence fitL-Tryptophan and L-Ornithine have moderate human evidence for this outcome.
- Dose fit0 of 3 dosed ingredients land in the studied range. L-Tryptophan at 55 mg sits below the studied 1000-3000 mg window.
- Price / serving$1.50 per serving — high price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustMixed trust signals — ratings are positive but the base is limited.
Trade-offsValue for money trails the rest of this listPopularity trails the other picks here
The numbers · Sleep qualityWhat's inside
31
36
80
60
55 mgBelow rangebelow the studied 1000-3000 mg window
28 mgThin evidenceevidence for this ingredient is still thin
1 gBelow rangebelow the studied 400-1000 mg window
140 mgBelow rangebelow the studied 200-400 mg window
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