Comparison
Melatonin vs CBD (Cannabidiol)
Melatonin
Pineal hormone regulating circadian rhythm. Low doses (0.3-1mg) often outperform higher doses for sleep.
CBD (Cannabidiol)
Non-psychoactive cannabinoid from hemp. Anxiolytic, anti-seizure, anti-inflammatory. The supplement market has grown explosively despite mixed evidence base.
| Field | Melatonin | CBD (Cannabidiol) |
|---|---|---|
| Category | neuroprotective | neuroprotective |
| Dose range | 0.3–3mg | 25–600mg |
| Half-life | 1h | — |
| Onset | 30min | — |
| Evidence | EVIDENCEA | EVIDENCEB |
| Safety | ●●●●● | ●●●●○ |
| Legal (US) | USOTC | USOTC |
| PubMed refs | 28000 | 6800 |
The comparison in plain English
Auto-generated from dataMelatonin and CBD (Cannabidiol) are both in the neuroprotective category respectively. Melatonin Pineal hormone regulating circadian rhythm. CBD (Cannabidiol) Non-psychoactive cannabinoid from hemp.
Bottom line
Melatonin (evidence A, safety 5/5) has a weaker evidence base than CBD (Cannabidiol) (evidence B, safety 4/5). Melatonin has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Melatonin if
Melatonin is the better fit when your goal aligns with its mechanism (Endogenous hormone produced by the pineal gland in response to darkness, signalling the circadian sleep window) and the dose range (0.3–3mg) suits your protocol. Half-life is 1h.
Choose CBD (Cannabidiol) if
CBD (Cannabidiol) is the better fit when your goal aligns with its mechanism (Modulates the endocannabinoid system through indirect mechanisms — CBD doesn't bind CB1 or CB2 receptors directly like THC does) and the dose range (25–600mg) suits your protocol. Half-life is —h.