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According to clinical studies, melatonin typically begins working within 30-60 minutes after ingestion. However, several factors affect its efficacy:

  • Individual metabolism rates
  • Dosage amount
  • Supplement form (pill, gummy, liquid)
  • Whether taken with food

Best practices for timing: Take melatonin 30-60 minutes before your intended bedtime. Consistency is key – take it at the same time each night when using it. For jet lag, start taking it a few days before travel at your destination’s target bedtime. The effects typically last 4-8 hours, though individual experiences may vary.

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Last Updated: October 23, 2025

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