Side by side

Compare supplements

Put up to three ingredients next to each other. See where the evidence, dosing, timing, and tradeoffs differ.

Supplement 1Supplement 2Supplement 3

Measure

Add a supplement

Evidence

Moderate evidence

Common protocol0.3–3 mg——

Protocols mapped

2 goal-specific

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Timing

30–120 minutes before target bedtime

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Expected effect

Same night; timing effects may take several days

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Primary uses

Sleep timingJet lagSleep onset

Watch for

Next-day drowsiness · Vivid dreams

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