Take 30 to 60 minutes before lights-out, start low
Pinned to before bed, the best window for Melatonin.
Take 30 to 60 minutes before lights-out, start low
Take 30-60 minutes before lights-out. Best window is before bed, no food. Educational only, not medical advice.
Melatonin is the hormone the pineal gland secretes in darkness to tell the body it is biological night. Supplemental melatonin mimics that signal, which is why it works for circadian-rhythm problems (jet lag, shift work, delayed sleep phase) more reliably than for primary insomnia. It does not 'knock you out', it cues the systems that already lower body temperature and prepare for sleep.
Timing signal, not a sedative. Take 30–60 min before bed in dim lighting. Lower doses (0.5–1mg) often work better than high doses.
30 to 60 minutes before your target bedtime, in dim light. Bright screens after dosing blunt the signal. Lower doses are usually better, the physiological range is 0.3 to 1 mg, doses of 5 to 10 mg often produce more side effects (morning grogginess, vivid dreams, next-day fog) without better sleep. For jet lag going east, take it at the destination bedtime starting one or two days before travel. For shift work, time it to your new dark window.
| Window | Fit | Note |
|---|---|---|
| Morning | Poor | Calming effect works against the day |
| Midday | Okay | Fine if the preferred window is not possible |
| Evening, 1-2h before bed | Best | Aligns with winding down |
Tap each to see why.
Both support wind-down, common bedtime pairing.
Often paired in wind-down routines.
Take together
Space apart
Sublingual or fast-melt tablets at 0.3 to 1 mg hit the bloodstream quickly, matching natural endogenous timing. Standard capsules and gummies are fine if dose is low. Avoid extended-release unless prescribed, the studied benefit is concentrated in short-onset forms. US melatonin products vary wildly in actual content versus label, choose USP-verified brands.
| Form | Notes |
|---|---|
| sublingual | Bypasses first-pass metabolism for select B vitamins. |
| capsule | Standard delivery, neutral taste. |
| gummy | Convenient but often contains added sugar, dosing varies. |
Who takes it: Jet-lagged travelers, shift workers, people with delayed sleep phase disorder (teenagers, night owls), older adults with reduced endogenous production, and adults with occasional sleep-onset trouble. Avoid in pregnancy, while breastfeeding, in young children without clinician approval, and alongside sedatives or alcohol.
No, 0.5–1mg often works as well or better than 5–10mg.
Magnesium Glycinate
Calming form of magnesium; supports wind-down.
Glycine
Supports sleep onset; take ~30 minutes before bed.
L-Theanine
Often paired with caffeine in the morning or used to wind down.
GABA
Used for relaxation; effects are individual.
Valerian Root
Mild sedative herb; take 30-60 minutes before bed.
On the science
The principles behind this guidance, solubility, circadian timing, and spacing, are explained on our science page.
OptimalNourish is strictly educational. We do not recommend dosages, diagnose conditions, or suggest treatments. Always consult a qualified healthcare professional before changing your supplement routine.
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