The onset time for melatonin varies among individuals, but research shows it typically takes 30-60 minutes to begin working. Several factors affect this timing:
- Formulation type (immediate vs. extended-release)
- Individual metabolism
- Dosage amount
- Whether taken with food
For optimal results, take melatonin 30-60 minutes before your intended bedtime. Studies indicate that consistent timing is crucial for effectiveness. The supplement’s effects typically last 4-8 hours, though this can vary. If using for jet lag, start taking it at your destination’s bedtime a few days before travel for best results.
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Last Updated: August 12, 2025
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