Which Form?
Melatonin
Moderate
consensus
Available Forms
- No expert specifies a particular form (immediate-release vs extended-release) in the analyzed videos
- Sublingual forms may be absorbed faster
- Johnson also uses topical melatonin in a hair growth formulation
Dosage & Timing
Dosage
- Low dose (0
- 3-1mg) if used at all
- Huberman warns that most commercial doses (3-10mg) are supra-physiological
- Johnson takes it nightly but does not specify dose in analyzed videos
- Hyman does not specify dose for sleep
- For elderly populations, Huberman acknowledges potential benefit at low doses
Timing
- Before bed (30-60 minutes)
- Johnson takes it before bed alongside DHEA
- Hyman recommends it for circadian rhythm reset, particularly for jet lag
- All experts emphasize that timing of light exposure matters more than melatonin timing
Expert Positions
What Each Expert Says
Huberman is the most vocal critic of supplemental melatonin among the five experts. Across at least 6 relevant episodes, he consistently prefers behavioral interventions — morning sunlight, evening light avoidance, and his magnesium-apigenin-theanine sleep stack — over melatonin supplementation. He explains that melatonin is a hormone with potential endocrine effects, that commercially available doses are supra-physiological, and that evidence shows minimal sleep benefit for healthy adults. He acknowledges melatonin may help elderly populations and notes its use in supporting deep sleep for growth hormone release, but consistently warns against overuse.
Unlock Expert Deep Dives
See exactly which form each expert takes, why they chose it, and their reasoning with video citations.
View Full Report