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[Glossary](/glossary)/ Melatonin 

Basics 

# Melatonin

## Definition

A hormone produced by the pineal gland that regulates sleep-wake cycles.

## Why It Matters

Some peptides interact with melatonin pathways, and understanding this hormone helps contextualize sleep research.

## Related Terms

[Circadian Rhythm](/glossary/circadian-rhythm)[Pineal Gland](/glossary/pineal-gland)

## Related Peptides

[CJC-1295 

A growth hormone releasing hormone analog studied for stimulating growth hormone secretion.

](/peptides/cjc-1295)[CJC-1295 (DAC) 

A long-acting GHRH analog with an extended half-life due to its Drug Affinity Complex modification.

](/peptides/cjc-1295-dac)[DSIP 

A neuropeptide studied for its role in sleep regulation and stress modulation.

](/peptides/dsip)[Epithalon 

A tetrapeptide studied for its potential to activate telomerase and influence biological aging markers.

](/peptides/epithalon)

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