Is It Worth It? Quick Verdict
What Are the Key Benefits?
Senolytic Clearance
Fisetin selectively eliminates senescent (zombie) cells, the Mayo Clinic-identified driver of aging.
Anti-Aging
Extended lifespan in animal models by up to 30%. Targets 9 of 12 hallmarks of aging.
Anti-Inflammatory
Potent NF-kB inhibitor. Reduces systemic inflammation more effectively than quercetin.
Brain Protection
Crosses the blood-brain barrier and may protect against cognitive decline.
What Is It and How Does It Work?
Fisetin is a flavonoid found in strawberries, apples, and onions. Research from the Mayo Clinic identified it as the most potent senolytic compound among 10 flavonoids tested, capable of selectively destroying senescent cells without harming healthy cells.
✅ Pros
- Most potent natural senolytic
- Mayo Clinic validated
- Affordable
- Crosses BBB
- Oral bioavailability with fat
❌ Cons
- Poor bioavailability without enhancers
- Limited human trials
- Optimal senolytic protocol debated
- Can cause temporary joint pain during senescent cell clearance
What Is the Recommended Dosage?
| Goal | Dosage | Timing |
|---|---|---|
| Senolytic protocol (intermittent) | 1000-1500mg/day for 2 consecutive days | Monthly, with fat for absorption, 3-month cycles |
| Daily anti-inflammatory | 100-200mg daily | With fatty meal |
| Longevity protocol | 500mg/day for 3 days, monthly | With quercetin for synergistic senolysis |
Where Can You Buy It?
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View Pricing →Frequently Asked Questions
Fisetin vs quercetin for senolysis?
Fisetin is 4x more potent as a senolytic than quercetin per Mayo Clinic data. But they work synergistically when stacked.
Why take fisetin intermittently?
Senolytics work best in HIT protocols (high dose, short duration). Daily low-dose is for anti-inflammatory benefits.
Herxheimer-like reaction?
Yes. As senescent cells die, you may experience joint aches, fatigue, or brain fog for 1-3 days. This is normal and temporary.
Can I get fisetin from food?
You would need 37 strawberries to match a 500mg supplement dose. Supplementation is required for senolytic effects.