Home / Ingredient Directory / Melatonin
Yannis Lopez
Reviewed by Yannis Lopez · Nutrition Industry Veteran
Last updated: July 6, 2026
Sleep & Recovery Hormone

Melatonin

Sleep onset & circadian rhythm support

Naturally produced by the body
Great for jet lag & shift work

FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before starting any supplement.

Overview

Melatonin is a hormone naturally produced by the pineal gland in the brain. It plays a key role in regulating the sleep-wake cycle (circadian rhythm). Melatonin levels naturally rise in the evening as it gets dark, signaling to the body that it's time to sleep.

Supplementing with melatonin can help with sleep onset, especially for people with jet lag, shift work, or occasional sleeplessness. It is one of the most commonly used sleep aids and is generally considered very safe when used appropriately.

Potential Benefits

Sleep Onset

May help reduce the time it takes to fall asleep. Works best when taken 30–60 minutes before bedtime.

Jet Lag & Shift Work

One of the most effective supplements for resetting the sleep-wake cycle when traveling across time zones or working irregular hours.

Circadian Rhythm Support

Helps regulate the body's internal clock, especially useful for people with irregular sleep schedules.

Generally Well Tolerated

Melatonin is very safe at recommended doses. Some people may experience vivid dreams or mild grogginess the next morning.

Typical Dosage
Standard Dose
0.5–5mg
Start with 0.5–1mg and increase if needed
Best Taken
30–60 minutes before bedtime
Use in a dark environment for best results
Pro Tips
  • Start with a low dose (0.5–1mg) — more is not always better
  • Take in a dark room or with eyes closed
  • Great stacked with Magnesium and L-Theanine
  • Use for short-term sleep issues or travel
Research Snapshot

Melatonin is well-studied for its ability to reduce sleep latency (time to fall asleep) and improve sleep quality. A 2013 meta-analysis of 19 randomized controlled trials found melatonin significantly reduced sleep onset latency and increased total sleep time compared to placebo. It is one of the most evidence-based sleep supplements available.

How Melatonin Compares

Ingredient Best For Key Difference
Melatonin Sleep onset, Jet lag, Shift work Hormone; signals sleep to the body
Magnesium Sleep quality, Muscle Relaxation Essential mineral; supports relaxation
L-Theanine Calm focus, Relaxation Amino acid; non-sedating

Melatonin is often stacked with Magnesium and L-Theanine for comprehensive sleep support.

Popular Stacks with Melatonin
Sleep Onset Stack
Melatonin + Magnesium Glycinate + L-Theanine
Most popular evening sleep combination
Jet Lag Stack
Melatonin + Magnesium + Apigenin
Great for travel across time zones
Deep Sleep Stack
Melatonin + Glycine + Tart Cherry
Popular for deep, restorative sleep

Full stack recommendations coming soon in our Stacks section.

Frequently Asked Questions
Will melatonin make me groggy the next day?
Most people do not experience next-day grogginess at low doses (0.5–3mg). Higher doses (5mg+) may cause mild grogginess in some people. Start low and adjust as needed.
Can I take melatonin every night?
Yes, melatonin is generally considered safe for daily use. However, it is best used for short-term sleep issues, jet lag, or shift work. Long-term use should be discussed with a healthcare provider.
How long before bed should I take it?
Take melatonin 30–60 minutes before your desired bedtime. For best results, take it in a dark environment and avoid bright screens afterward.
Sources & References
Related Ingredients
Magnesium
Sleep & muscle relaxation
L-Theanine
Calm & relaxation
Ashwagandha
Stress & sleep support
Apigenin
Natural sleep compound
From the Blog
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