Cross-referencing clinical data
A pairing appears on this page only when a trial gave both ingredients together and measured the result. Polymethoxylated flavones has none that clears that bar.
Stitching two separate single-ingredient studies into a pairing is the one thing this engine will not do. When a study of the combination itself holds up at source, it lands here with its citation.
No invented synergy. Where actives were studied on their own rather than together, the record shows each on its own evidence, never a combined effect no trial measured.
Research strength. Research strength says how much work stands behind the combination. It is never a product score.
Independent record. Every finding is cited to a named trial, dated, and never written by the brand.
20 pairings are live across the library today. Checked 20 July 2026.
No study gave these as a pair, so they are not in the card above. But the reason they belong together is settled biochemistry, not a guess, so it is worth knowing.
Nobiletin and tangeretin dissolve far better in lipid than in water, and dissolution is the rate-limiting step for uptake of this class. Delivering them in a medium-chain triglyceride vehicle keeps them in solution through the gut. This is standard formulation pharmaceutics rather than a tested clinical pairing. The gain is on exposure, not on any measured outcome.
Phospholipid complexes and lecithin-based dispersions are the usual answer for flavonoids that will not wet in water. The phospholipid forms mixed micelles with bile salts and keeps the flavone dispersed at the absorptive surface. Applied to citrus polymethoxyflavones this is a formulation strategy carried across from better-studied flavonoids. No human comparison of the two forms exists for this class.
Quercetin carries free hydroxyl groups and is heavily glucuronidated and sulfated on first pass, while polymethoxylated flavones have those positions capped with methoxy groups and largely escape that step. Combining them gives two different exposure profiles from one flavonoid dose, one fast-conjugated and one longer-lived. The pairing is mechanistic reasoning, not a tested combination. Both still undergo demethylation and CYP-mediated oxidation.
EGCG and its metabolites occupy the same UGT and SULT enzymes that handle demethylated polymethoxyflavone metabolites. At high combined intakes the conjugation step can become the bottleneck, changing the metabolite mix from either compound alone. This is inferred from shared enzymology rather than measured in people. The direction of the net effect is not established.
Piperine slows glucuronidation and some CYP-mediated oxidation, which is the usual route by which polymethoxyflavones are cleared after demethylation. Adding it should raise systemic exposure of this class on the same logic used for curcumin. The same inhibition applies to unrelated medicines cleared by those enzymes, which is the reason for care. No study has measured the citrus flavone pairing in humans.
Nothing specific on file for Polymethoxylated flavones. Match the label to the daily amount above, and tell your doctor what you take.
Not medical advice. Show the label to your pharmacist.FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult your healthcare provider before starting any supplement regimen.