From the databaseWhat the row says.
Every entry follows the same shape: what is happening, the mechanism, and the recommendation.
Scope
Supplement × Supplement
Last verified
June 4, 2026
SynergyEmerging evidence
What is happening. Luteolin and quercetin are both flavonoids with overlapping mast-cell-stabilizing, antihistaminic, and NF-kappaB-inhibiting anti-inflammatory activity, and they are frequently co-formulated for allergy and neuroinflammatory support.
Mechanism. Both flavones/flavonols stabilize mast cells and inhibit pro-inflammatory transcription factors; effects are largely complementary rather than redundant.
Recommendation. Combining is reasonable for additive flavonoid effects. Because both are flavonoids that inhibit CYP and UGT enzymes, be cautious when also taking narrow-therapeutic-index medications and discuss with a clinician.
Stack Score
How it moves the number.
Effect on the composite score
If both Luteolin and Quercetin are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).
The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.
SourcesSources, by evidence tier.
Every claim on this page is cited. PMIDs link straight to PubMed.
Reference material
1- 1Theoharides TC, et al. Luteolin as a therapeutic option for multiple sclerosis and neuroinflammation. Journal of Neuroinflammation. 2018.Needs sourceNo link