Quercetin and Fisetin: Senolytic Claims vs Trials
Quercetin and fisetin as senolytics: human trials tested dasatinib plus quercetin in patients, not supplements for healthy aging.
Researched from published studies and manufacturer specifications, checked .
We have not tested products ourselves. How we research
Quick verdict
The human senolytic trials we found used dasatinib (a cancer drug) plus quercetin in patients with diabetic kidney disease, Alzheimer's disease or pulmonary fibrosis, and were small feasibility or pilot studies. We found no completed trial showing that over-the-counter quercetin or fisetin removes senescent cells or benefits healthy aging.
Talk to your doctor first. This is general information, not medical advice. Supplements and devices can interact with medicines and health conditions. We quote study protocols for context and do not recommend doses.
The short answer: the human senolytic trials we found used dasatinib, a cancer drug, plus quercetin, in patients with diabetic kidney disease, mild Alzheimer’s disease or pulmonary fibrosis. They were small feasibility or pilot studies. We found no completed trial showing that over-the-counter quercetin or fisetin clears senescent cells or benefits healthy aging. Talk to your doctor; these compounds can interact with medicines.
What the evidence shows
Grade: Not shown in healthy people (animal and pilot-stage evidence only).
| Trial | What it tested | Limit |
|---|---|---|
| Hickson 2019 | Dasatinib plus quercetin in people with diabetic kidney disease; preliminary report of decreased senescent cells | Preliminary, patients, a drug combination |
| Gonzales 2023 | Senolytic therapy in mild Alzheimer’s disease, phase 1 feasibility trial | Feasibility, not efficacy |
| Justice 2019, idiopathic pulmonary fibrosis pilot | First-in-human open-label pilot | Open-label, small |
None of these tested fisetin, or quercetin alone, in healthy adults. Where it sits: graded ladder. Related: curcumin, resveratrol. Products (Amazon links, we may earn a commission; contents not verified): Life Extension fisetin, NOW quercetin.
Method note
Researched from PubMed records (29 Sept 2026); trial results beyond the titles were not extracted. We did not test any product. General information, not medical advice: this page gives no dose or schedule.
Common questions
Do fisetin and quercetin clear senescent cells in humans?
Not shown for supplements alone in healthy people. The human studies we found combined dasatinib with quercetin in patients: a diabetic kidney disease pilot reported decreased senescent cells, a phase 1 feasibility trial in mild Alzheimer's disease and a pilot in idiopathic pulmonary fibrosis. They were small and not designed to show benefit for healthy aging.
Sources
- Senolytics decrease senescent cells in humans, dasatinib plus quercetin in diabetic kidney disease (EBioMedicine 2019) checked 29 Sept 2026
- Senolytic therapy in mild Alzheimer's disease, phase 1 feasibility trial (Nat Med 2023) checked 29 Sept 2026
- Senolytics in idiopathic pulmonary fibrosis, first-in-human open-label pilot (EBioMedicine 2019) checked 29 Sept 2026
Update log
- Sourcing pass: removed unsourced cycling protocols, doses and healthy-aging claims; stated that the human trials we found combined dasatinib with quercetin in patients and did not test over-the-counter fisetin.
Data and comparisons
- Quercetin evidence record
A senolytic flavonoid that clears senescent ("zombie") cells
- Resveratrol evidence record
A polyphenol that activates sirtuins (SIRT1)
- NMN evidence record
A direct NAD+ precursor that restores declining NAD+ levels with age
- NR evidence record
An alternative NAD+ precursor with more human trial data than NMN
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