Head to head
Spermidine vs Urolithin A (Mitopure)
On the strength of human evidence, Urolithin A (Mitopure) comes out ahead (evidence 38 vs 25). But they're often used for different things — read each claim before deciding.
Spermidine
▲ Trendingthe autophagy-longevity bet, early in humans
Marketing intensity 72 of 100. Evidence strength 25 of 100. Verdict: Severely overhyped.
A compelling longevity mechanism (it triggers autophagy) with encouraging animal data - but the human cognition trials are small and mixed, not the proven memory aid it's sold as.
Full evidence on Spermidine →Urolithin A (Mitopure)
▲ Trendingthe mitochondria supplement with actual RCTs
Marketing intensity 76 of 100. Evidence strength 38 of 100. Verdict: Overhyped.
Better evidenced than most longevity supplements - real RCTs show small gains in muscle strength and mitochondrial markers. Caveats: effects are modest, trials are small and industry-funded.
Full evidence on Urolithin A (Mitopure) →Side by side
| Metric | Spermidine | Urolithin A (Mitopure) |
|---|---|---|
| Overall tier | Weak | Limited |
| Evidence score | 25/100 | 38/100 |
| Hype score | 72/100 | 76/100 |
| Verdict | Severely overhyped | Overhyped |
| Safety concern | low | low |
Quick answers
Spermidine or Urolithin A (Mitopure) — which has better evidence?
On the strength of human evidence, Urolithin A (Mitopure) comes out ahead (evidence 38 vs 25). But they're often used for different things — read each claim before deciding.
Can you take Spermidine and Urolithin A (Mitopure) 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.