Product Description
You push your body through high-volume training weeks, race-day efforts, and back-to-back sessions that pile up oxidative stress and test your immune system. Quercetin — a powerful plant flavonoid and natural antioxidant — can help your body fight back. The problem? Standard quercetin supplements barely absorb, so most of what you take never reaches your cells.
Your Antioxidant Defense Just Got 20x Stronger
Pure Encapsulations Quercetin UltraSorb solves that with QuerceFit®, a patented quercetin-phospholipid complex clinically shown to absorb 20 times better than regular quercetin.
Absorbs 20x Better Than Standard Quercetin – QuerceFit® pairs quercetin with sunflower-derived phospholipids in a 1:1 ratio, protecting it through your digestive tract and delivering it where your body actually needs it. You get dramatically more from every capsule.
Supports Your Immune System Under Training Stress – Hard training suppresses your immune system, and that's when you're most vulnerable. Quercetin helps stabilize mast cells (the immune responders that trigger inflammation and allergic reactions), keeping your immune defenses strong through heavy training blocks and race season.
Accelerates Recovery and Cellular Renewal – Quercetin activates SIRT1, a protein that triggers autophagy, your body's natural process of clearing out damaged cells and rebuilding fresh ones. It also boosts glutathione, your body's master antioxidant, helping neutralize the oxidative damage that comes from pushing hard day after day.
How to Use Pure Encapsulations Quercetin UltraSorb
Take 1 capsule, 1–2 times daily, with meals.
Supplement Facts
90 Servings
Serving Size: 1 capsule
Serving Per Container: 90
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Quercefit® quercetin phytosome (Quercetin and sunflower phospholipid complex) (standardized to contain 34% quercetin) 300mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
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We do not accept returns on food items that have been opened, but we will issue a store credit if you are unsatisfied. In the event of a return, you must first contact us before sending back a return shipment.
Consumable products over $40 receive a 50% store credit. This includes specialty nutrition products such as ketones or supplements/vitamins.
Pure Encapsulations Quercetin UltraSorb FAQ's
Everything you need to know before getting started.
Take 1 capsule with a meal, 1–2 times daily. Taking it with food improves absorption and helps build consistent daily levels for ongoing immune and antioxidant support.
Most athletes notice improvements in how they feel during heavy training blocks within 2–4 weeks of consistent daily use. A pilot trial showed measurable antioxidant and respiratory benefits after 30 days of supplementation.
QuerceFit® is a patented phytosome complex that wraps quercetin in sunflower-derived phospholipids. This protects the quercetin through digestion and dramatically increases absorption — 20 times more than standard quercetin in a clinical pharmacokinetic study.
Quercetin helps in three key ways: it supports immune function during periods of heavy training when you're most vulnerable, it accelerates recovery by promoting cellular renewal and reducing oxidative damage, and it supports respiratory comfort for easier breathing during hard efforts.