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Melatonin
N-acetyl-5-methoxytryptamine
The body's primary sleep-regulating hormone — naturally produced by the pineal gland in response to darkness. Melatonin is the world's most widely used sleep supplement, with extensive clinical evidence supporting its ability to reduce sleep onset time, regulate circadian rhythm, support sleep quality, and address jet lag and shift work sleep disruption.
What Is It?
Melatonin is an endogenous hormone produced naturally in the pineal gland — a small gland in the brain that responds to light and darkness signals from the eyes.
Production begins after sunset, peaks in the middle of the night, and tapers off before sunrise — directly regulating the body's 24-hour circadian rhythm.
Modern lifestyles significantly disrupt natural melatonin production — artificial light, screen exposure, irregular sleep schedules, and stress all suppress the pineal gland's output.
Supplemental melatonin helps restore this disrupted signal without the dependency risks associated with pharmaceutical sleep medications.
Production begins after sunset, peaks in the middle of the night, and tapers off before sunrise — directly regulating the body's 24-hour circadian rhythm.
Modern lifestyles significantly disrupt natural melatonin production — artificial light, screen exposure, irregular sleep schedules, and stress all suppress the pineal gland's output.
Supplemental melatonin helps restore this disrupted signal without the dependency risks associated with pharmaceutical sleep medications.
How It Works
Melatonin works through specific melatonin receptors (MT1 and MT2) found throughout the brain and body:
- MT1 Receptors — primarily responsible for melatonin's sleep-promoting effects. Activation suppresses neuronal firing in the suprachiasmatic nucleus (SCN) — the brain's master clock — signaling that it is time to sleep
- MT2 Receptors — involved in circadian rhythm phase shifting — the mechanism by which melatonin helps reset the body clock for jet lag, shift work, o r irregular schedules
- Temperature Regulation — melatonin triggers the drop in core body temperature that facilitates sleep onset
- Antioxidant Activity — melatonin is a potent antioxidant that crosses the blood-brain barrier, protecting
neurons from oxidative damage during the brain's nighttime repair processes
- Immune Support — melatonin receptors are found on immune cells, and melatonin plays a role in regulating nighttime immune function
- MT1 Receptors — primarily responsible for melatonin's sleep-promoting effects. Activation suppresses neuronal firing in the suprachiasmatic nucleus (SCN) — the brain's master clock — signaling that it is time to sleep
- MT2 Receptors — involved in circadian rhythm phase shifting — the mechanism by which melatonin helps reset the body clock for jet lag, shift work, o r irregular schedules
- Temperature Regulation — melatonin triggers the drop in core body temperature that facilitates sleep onset
- Antioxidant Activity — melatonin is a potent antioxidant that crosses the blood-brain barrier, protecting
neurons from oxidative damage during the brain's nighttime repair processes
- Immune Support — melatonin receptors are found on immune cells, and melatonin plays a role in regulating nighttime immune function
Side Effects & Considerations
Melatonin is one of the safest and most studied sleep supplements available:
- Very well tolerated at standard doses
- Grogginess or "sleep inertia" if taken too late or at too high a dose — start with lowest effective dose
- May cause vivid dreams in some people
- Not habit-forming — does not create dependence or rebound insomnia
- May lower body temperature
- Not recommended before driving or operating machinery
- May interact with blood thinners, immunosuppressants, and diabetes medications
- Not for use during pregnancy or nursing without medical supervision
- Children should use only under medical supervision
- Those on seizure medications should consult their doctor
Typical Dosage Range
0.5mg – 5mg daily
Research consistently shows that lower doses (0.5-1mg) are often as effective as higher doses for sleep onset, with fewer side effects.
Take 30-60 minutes before desired sleep time.
Timing is critical — melatonin is most effective when taken in alignment with your natural
darkness cycle.
Avoid bright light and screens after taking melatonin for best results.
The 2.5mg dose in Troomy Sleep is within the commonly studied range.
Research Notes
- Ferracioli-Oda et al. (2013) — Meta-analysis of 19 studies published in PLOS ONE found melatonin
significantly decreased sleep onset latency, increased total sleep time, and improved overall sleep quality
compared to placebo.
- Auger et al. (2015) — Clinical Practice Guideline from the American Academy of Sleep Medicine confirmed
melatonin's effectiveness for circadian rhythm sleep-wake disorders including jet lag and shift work disorder.
- Reiter et al. (2014) — Comprehensive review in Advances in Medical Sciences established melatonin as among the most potent endogenous antioxidants with particular relevance to brain health and neuroprotection.
- Brzezinski et al. (2005) — Meta-analysis in Sleep Medicine Reviews confirmed melatonin supplementation
reduces sleep onset latency and improves sleep efficiency across diverse populations.
significantly decreased sleep onset latency, increased total sleep time, and improved overall sleep quality
compared to placebo.
- Auger et al. (2015) — Clinical Practice Guideline from the American Academy of Sleep Medicine confirmed
melatonin's effectiveness for circadian rhythm sleep-wake disorders including jet lag and shift work disorder.
- Reiter et al. (2014) — Comprehensive review in Advances in Medical Sciences established melatonin as among the most potent endogenous antioxidants with particular relevance to brain health and neuroprotection.
- Brzezinski et al. (2005) — Meta-analysis in Sleep Medicine Reviews confirmed melatonin supplementation
reduces sleep onset latency and improves sleep efficiency across diverse populations.
* 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.