Quercetin
Flavonoid antioxidant. Co-senolytic with fisetin or dasatinib. Anti-allergic and anti-viral support, popular as a daily polyphenol.
What it actually is
Not a peptide. Quercetin is a flavonol polyphenol found in onions, apples, capers, and berries. Acts as a potent antioxidant, mast-cell stabilizer, and (paired with dasatinib) as a senolytic. Sold heavily during COVID for the anti-viral angle.
Why peptide users come across it
The 'D+Q' senolytic protocol (dasatinib + quercetin) is the most-cited senolytic combination in the longevity literature. Daily low-dose use is common for histamine modulation, allergies, and immune support.
Mechanism
Documented dose range
Side effects
Contraindications
The Pepdex take
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