Evaluating products.
How do I choose a melatonin product — and what does the right dose look like?
Shelf order follows the dose paradox: Natrol's 1 mg leads as the physiologic-dose default (the MIT-range signal, USP-verified), NOW's 3 mg is the studied mid-dose (the acid-reflux page's shared product, the trial-standard quantity), and the liquid closes as the titration format (sub-milligram dosing for the signal-sensitive and the pediatric population under supervision). All three deliver the same hormone; the dose and the timing are the decisions. The products below are educational examples — not medical recommendations.
Natrol Melatonin 1 mg
by Natrol · Synthetic Melatonin (Low-Dose)
Score
The dose closest to physiology: the MIT research program found ~0.3–1 mg matched the body's natural nighttime rise better than the mega-doses on the shelf — higher doses add morning grogginess without better sleep. Take 1–2 hours before target bedtime (the signal needs lead time to shift the clock). 🚨 Do not drive after taking. Not for anyone with sleep apnea without physician approval. Not for children without pediatric supervision.
Runner-ups
NOW Melatonin 3 mg
by NOW Foods · Synthetic Melatonin
Nature Made Melatonin Liquid (1 mg per dropper)
by Nature Made · Liquid Melatonin