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Scored forOutcome alternatives
Life Extension100 count • 100 servingsAvailable now$10.80$0.11 / serving4.8 · 12,409 ratings166 / day
5−89 pts from leader
#4391 of 7239 ranked for sleep qualityLeader · Source Naturals, Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets — 94
Why this ranks #4391 for sleep quality
- Evidence fitGlycine has moderate human evidence for this outcome.
- Dose fitGlycine at 1000 mg is higher than the studied 3-5 g window.
- Price / serving$0.11 per serving — low price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
Trade-offsDose fit is the weak spot on this listEvidence depth trails the rest of this list
The numbers · Sleep qualityWhat's inside
5
5
1
39
1000 mgAbove rangehigher than the studied 3-5 g window
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