Flavonoid
Quercetin
A plant flavonoid with antioxidant and anti-inflammatory properties that support overall brain health.
KÖGN Health grades Quercetin as B (Moderate evidence) and rates it 3.7 out of 5.
Last reviewed · June 2026
Primary effects
- Neuroprotection
- Reduced inflammation
- Cognitive support
How it works
Reduces oxidative stress and inflammation, supporting cellular and neurological health.
Overview
Quercetin is widely studied for its antioxidant and anti-inflammatory effects, which play an indirect role in supporting brain health. While it does not provide acute cognitive enhancement, it contributes to long-term neuroprotection. It is often used as part of a broader health optimisation protocol alongside other polyphenols.
Related ingredients
Graded entries that target the same cognitive goals.
Categories
Educational information, not medical advice. The evidence grade is KÖGN’s editorial assessment of published research, not a health claim. Speak to a qualified clinician before changing what you take.