Double Wood leans on transparency: stated 96% quercetin purity (above the ~70-90% typical of budget extracts), the highest bromelain pairing here at 200 mg, and published COAs. It's a 1,000 mg quercetin plus 200 mg bromelain two-cap serving. On paper it's the strongest plain combo. In practice it shares the category's ceiling, since even purified quercetin isn't well absorbed without a delivery system.
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Read the complete Quercetin guide →Higher purity than typical budget extracts, but still an unenhanced quercetin, so absorption remains low. Purity improves what's in the cap, not how much reaches your blood.
1,000 mg quercetin per two-cap serving matches the top of the studied range, with the highest bromelain co-dose (200 mg) in the set.
States 96% purity, third-party tested, vegan-safe, gluten-free, with COAs available from a single-SKU seller. Good transparency for the price band.
Well tolerated; higher bromelain content means the usual blood-thinner and pineapple-allergy cautions apply a bit more. Large two-cap serving.
~$25 for 60 servings is fair but not category-leading; you pay a small premium for the purity claim and COA transparency over Nutricost.
“96% purity means better results than lower-purity quercetin”
Higher purity improves label accuracy but is not shown to improve clinical outcomes; the binding constraint for plain quercetin is absorption, not the small purity difference.
“The product provides 1,000 mg quercetin per capsule”
Per the label the 1,000 mg is a two-capsule serving, not per capsule; each cap carries roughly 500 mg quercetin.
Publishing COAs and a specific purity figure from a single-brand seller is more accountability than many competitors offer, and it's a legitimate reason to prefer Double Wood within the plain-combo tier.
A cleaner extract still needs a delivery system to be absorbed well. The 96% figure is a quality signal, not a bioavailability upgrade, so this stays mid-pack behind the phytosomes.
Double Wood is the pick if purity and transparency top your list and you want the highest bromelain co-dose. It earns a solid mid-tier spot, but purity doesn't defeat quercetin's absorption problem, so it lands behind the phytosomes and the cheaper tested combos.
Check Double Wood on AmazonDetails quercetin's poor intrinsic bioavailability as a key barrier to translating mechanistic effects into human outcomes.
Reviews quercetin's mast-cell-stabilizing, anti-allergic mechanisms, which are largely preclinical rather than confirmed in large human allergy trials.
