Fisetin is a naturally occurring flavonol (a plant polyphenol) found in strawberries, apples, persimmons, onions, and other fruits and vegetables. A 2018 screen of flavonoids identified fisetin as the most potent 'senolytic' - a compound that selectively triggers death of senescent cells, damaged cells that stop dividing but persist and secrete pro-inflammatory factors termed the senescence-associated secretory phenotype (SASP). Its senolytic action is attributed to transiently disabling the anti-apoptotic survival pathways senescent cells depend on, along with prooxidant effects amplified by the copper and iron that accumulate in these cells; fisetin also has broader antioxidant and anti-inflammatory activity.
Because senescent cells accumulate with age and contribute to frailty, vascular dysfunction, inflammation, and multiple age-related diseases, selectively clearing them is a leading longevity strategy. In aged mice, intermittent fisetin has reduced senescence markers and improved endothelial function, arterial stiffness, muscle grip strength, and glucose metabolism, and one landmark 2018 study reported extended median and maximum lifespan - though the NIA Interventions Testing Program later found no significant lifespan extension at the dose and schedule it tested, so that flagship result appears dose- and schedule-dependent at best. Human evidence is early: small randomized trials show anti-inflammatory effects (100 mg/day lowered IL-8 and hs-CRP in colorectal cancer patients on chemotherapy) and better outcomes when added to stroke thrombolysis, but no published trial has demonstrated senescent-cell clearance or aging benefits in healthy older adults, and larger trials (in childhood-cancer survivors, frailty, and sepsis) are still underway. Reviewers caution that senolytics should not yet be used outside clinical trials. This evidence describes the fisetin compound and the senolytic/senescent-cell-clearance mechanism itself, not this specific commercial product.
Peer-reviewed studies on the active compound — citations link to PubMed.
“fisetin was the most potent senolytic”
“The first senolytic drugs Dasatinib, Quercetin, Fisetin and Navitoclax were discovered using a hypothesis-driven approach”
“we discover pro-survival Senescent Cell Anti-apoptotic Pathways and the first senolytic agents”
“Based on these findings; it is possible to say that quercetin and fisetin are potential agents that can be used alone or in combination with other effective treatments to alleviate neuropathic pain.”
“The results of our research clearly indicate that substances that inhibit all three MAPKs provide pain relief and improve opioid effectiveness, especially if they additionally block NF-κB, such as peimine, inhibit NF-κB and activate PI3K, such as fisetin, or activate Nrf2, such as astaxanthin.”
“Among senolytic candidates, only dasatinib with quercetin and fisetin meet the rigorous criteria for senolytic drugs, according to a modified version of Koch's postulates.”
Research describes the active mechanism and is not a claim about this specific product.
Across large randomized trials and meta-analyses, marine omega-3s reliably reduce serum…
Across meta-analyses and randomized trials, creatine monohydrate combined with…
In humans, randomized trials and meta-analyses most consistently show that astaxanthin…
Multiple meta-analyses of randomized trials indicate that oral zinc, started soon after…
Yes — its active compound is linked to 25 peer-reviewed studies, summarized and cited above.
You can buy it on Amazon via the link above; Magellan earns a small affiliate commission at no extra cost to you, which does not affect the evidence grade.
Dietary supplements and devices are generally well tolerated but are not a substitute for medical care. Talk to your physician before starting, especially if you take medication or have a health condition.