Sleep · Sleep peptide (research)
Melatonin
- Drug class
- Sleep peptide (research)
- Status
- Compounded (503A)
- Also known as
- n-acetyl-5-methoxytryptamine, sleep hormone, circadian
- Reviewed
- 2026-06-01 · Dr. Ana Lisa Carr, MD
What Melatonin is studied for
- Sleep onset (research)
- Circadian rhythm (research)
- Antioxidant activity (research)
Mechanism of action
Melatonin is being studied in the sleep category. Endogenous hormone supporting circadian rhythm and sleep onset. Mechanism of action varies by study model; refer to the kindr clinical library for a deeper writeup.
Frequently asked questions
What is Melatonin?
Melatonin is a sleep peptide. Endogenous hormone supporting circadian rhythm and sleep onset.
What is Melatonin studied for?
Published research has examined Melatonin for sleep onset, circadian rhythm, antioxidant activity. Human clinical evidence varies by indication.
Is Melatonin FDA-approved?
No. Melatonin is not FDA-approved for the indications listed. It is available compounded by 503A pharmacies under clinician supervision, or for international research use only on this catalog.
How is Melatonin used in research?
Protocols vary by study. Melatonin is typically administered subcutaneously in research settings. No validated human therapeutic dose exists outside FDA-approved indications.
What are the known risks?
Long-term human safety data for Melatonin is limited. Theoretical risks vary by mechanism. Any human use should be supervised by a licensed clinician.