Head to head
GABA vs Melatonin
On the strength of human evidence, Melatonin comes out ahead (evidence 55 vs 35). But they're often used for different things — read each claim before deciding.
GABA
Limitedcalm in a capsule — if it reaches your brain
Marketing intensity 70 of 100. Evidence strength 35 of 100. Verdict: Overhyped.
Sold as instant calm, but the catch is basic biology: oral GABA struggles to cross into the brain. A few small trials hint at a sleep effect anyway, by unclear means.
Full evidence on GABA →Melatonin
Moderatea timing cue, not a sleeping pill
Marketing intensity 85 of 100. Evidence strength 55 of 100. Verdict: Overhyped.
A circadian signal that helps you shift when you sleep. It is not a sedative, and most people take far too much.
Full evidence on Melatonin →Side by side
| Metric | GABA | Melatonin |
|---|---|---|
| Overall tier | Limited | Moderate |
| Evidence score | 35/100 | 55/100 |
| Hype score | 70/100 | 85/100 |
| Verdict | Overhyped | Overhyped |
| Safety concern | low | moderate |
Quick answers
GABA or Melatonin — which has better evidence?
On the strength of human evidence, Melatonin comes out ahead (evidence 55 vs 35). But they're often used for different things — read each claim before deciding.
Can you take GABA and Melatonin together?
This page compares the evidence, not interactions. Some supplements interact with each other or with medications — check each one's safety section and talk to a pharmacist before stacking.