Source: Examine.com — Melatonin — 0.5–5 mg before bed for sleep onset; more is not better.
The hormone your brain releases at night to signal sleep.
Signals darkness to your brain's master clock, nudging you toward sleep.
Grogginess, vivid dreams and next-day fog — usually from doses that are too high. Less is more: 0.5–3 mg beats 10 mg. It's not habit-forming.
| Per serving | |
|---|---|
| Typical branded single-ingredient product | $0.25 |
| Bulk powder at the clinical dose (10g pwdr, $18.97) | $0.01 |
Buying bulk powder instead of a branded bottle saves about 98% per serving.
Bulk price: $18.97/10g →Educational only — not medical advice. Grades and clinical doses are computed from public labels against sourced research (citations on the main site); prices last verified 2026-07-21. Expensive Powder has no sponsors; bulk links may earn an affiliate commission, which never affects a grade. Talk to a clinician before starting any supplement.