Fisetin vs Rapamycin

Head-to-head comparison of Fisetin (3,3',4',7-Tetrahydroxyflavone) and Rapamycin (Rapamycin (Sirolimus)) — benefits, dosing, side effects, research data, and where to buy.

Research Score

PropertyFisetinRapamycin
CategoryAnti-AgingAnti-Aging
Full Name3,3',4',7-TetrahydroxyflavoneRapamycin (Sirolimus)
Molecular Weight286.24 Da914.17 Da
Half-Life3-8 hours~62 hours
Amino AcidsN/AN/A
Typical Dose1000-2000 mg/day0.5-6 mg/week
RouteOralOral
Purity≥98%≥98%
Studies Count1801500
Research StatusPre-clinicalClinical

Fisetin Benefits

  • senolytic activity
  • reduces inflammatory signaling
  • supports mitochondrial function
  • may improve healthspan

Rapamycin Benefits

  • mTOR inhibition
  • autophagy activation
  • cellular senescence modulation
  • lifespan extension in model organisms

Fisetin Dosing

1000-2000 mg/day orally|1-2 days per month in senolytic-style studies|take with a fat-containing meal

Rapamycin Dosing

0.5-6 mg oral weekly in studies|intermittent dosing protocols|clinical monitoring for tolerability

Fisetin Side Effects

  • GI upset
  • headache
  • possible blood-thinner interaction

Rapamycin Side Effects

  • mouth ulcers
  • elevated lipids
  • immunosuppression
  • glucose intolerance

Research Overview

Fisetin

Preclinical studies show fisetin can selectively target senescent cells and reduce age-related inflammatory markers. Early human research exists, but definitive anti-aging outcomes in humans are still unproven.

Rapamycin

Rapamycin extends lifespan in multiple model organisms and is a cornerstone compound in longevity biology. Human studies focus on immune function, inflammation, and age-related biomarkers rather than proven lifespan extension.

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Common Stacking Partners

Fisetin stacks with:

QuercetinCoQ10Nicotinamide Riboside

Rapamycin stacks with:

MetforminSpermidineNMN
senolyticpolyphenolantioxidanthealthspanmTORautophagygerosciencelongevity