Typical guidance
Start low, often 0.3–1 mg, and adjust only for a defined circadian goal.
MODERN BIO / SLEEP / SUPPLEMENT
Moderate evidenceMelatonin
Best for circadian timing, travel and select cases—not a universal sedative.
This page is a practical starting point—not a diagnosis or personalized prescription. The useful dose depends on the outcome, the person and the quality of the intervention.
01TYPESupplement
02TYPICAL SERVING / DOSEStart low—often 0.3–1 mg; higher is not automatically better
03TIMINGUsually 1–3 hours before the intended sleep time, depending on the goal
04TRIAL LENGTHShort, goal-directed trials are preferable
HOW TO USE THIS PAGE
Decide whether melatonin deserves a real trial.
- 01Confirm the fit
Connect the intervention to a specific sleep outcome and review the evidence boundary.
- 02Set the protocol
Define amount, timing, quality standard and a realistic trial length before starting.
- 03Track one useful signal
Choose the measure that will tell you to continue, adjust or stop.
RECOMMENDED RANGES
Men and women may need different context.
We only show a different amount when physiology, dietary requirements or clinical evidence supports it. Otherwise, we say the range is the same.Typical guidance
Start low, often 0.3–1 mg. Pregnancy, fertility treatment and breastfeeding require clinician review.
Important context: Timing usually matters more than body size or sex. Higher doses are not automatically more effective.
WHAT IT MAY HELP WITH
Why people use it
Best for circadian timing, travel and select cases—not a universal sedative. Its relevance here is specifically connected to sleep. Outcomes can differ when the same intervention is used for another purpose.
Moderate evidence
Promising human evidence exists, but studies, populations or results have meaningful limitations.
SERVING & PROTOCOL
How it is typically used
Start low—often 0.3–1 mg; higher is not automatically better
Most useful for circadian timing, jet lag or select sleep problems rather than as a general knockout aid.
- Timing
- Usually 1–3 hours before the intended sleep time, depending on the goal
- How long to assess
- Short, goal-directed trials are preferable
QUALITY CHECK
What to look for
- A form, device, provider or protocol that matches the evidence—not just the marketing name.
- Transparent labeling, realistic claims and independent quality verification where applicable.
- A measurable reason to use it and a predefined way to judge whether it is helping.
- No hidden proprietary blend or pressure to replace proven medical care.
SAFETY & INTERACTIONS
What to know first
Can cause next-day sleepiness and interact with medications. Product quality varies.
Stop and reassessDiscontinue and seek appropriate care for a severe reaction, fainting, chest symptoms, breathing difficulty, neurological changes or rapidly worsening symptoms.
SCIENTIFIC EVIDENCE
Read the data yourself.
These high-level sources establish the scientific context for sleep. The live PubMed link narrows the literature to melatonin.01Systematic review & meta-analysis · 2015
Cognitive Behavioral Therapy for Chronic Insomnia
Found clinically meaningful improvements in multiple sleep outcomes from CBT-I in adults with chronic insomnia.
Open scientific source ↗02AASM systematic review · 2021
Behavioral and Psychological Treatments for Chronic Insomnia
Provides the evidence base supporting behavioral and psychological treatments as core chronic-insomnia care.
Open scientific source ↗LIVENATIONAL LIBRARY OF MEDICINE
Search Melatonin on PubMed
See the current indexed biomedical literature, including newer trials and reviews added after this page was published.
Open live PubMed search ↗Research quality is not determined by citation count alone. We consider design, sample size, controls, consistency, relevance, conflicts and whether the outcome was clinically meaningful.
MODERN BIO SELECT
The best option—regardless of commission.
We do not sell the top placement. Every winner must earn it through evidence, quality, safety, transparency and real-world value.PRODUCT / SERVICE PICKREVIEW IN PROGRESS
Best Melatonin product
We are comparing formulation, clinically relevant serving, contaminant testing, label transparency, value and manufacturer quality before naming a winner.
Get notified when selected →PROVIDER PICKVETTING IN PROGRESS
Best professional guidance
Our provider directory will prioritize credentialed clinicians and registered dietitians who evaluate the full picture before recommending a supplement.
Join the provider shortlist →What a winner must prove01 Third-party identity and contaminant testing02 A transparent, evidence-aligned serving03 No proprietary blend or inflated claims
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