The Vitabase Advantage
Free shipping on every order
Availability: In stock as of 04/28/2025
Easy 90-day returns
No automatic shipments required
Technical information
Ingredient list
| Ingredient | Amount |
| Quercetin Phytosome™ (Quercefit®) (quercetin and sunflower phospholipid complex) (standardized to contain 34% quercetin) | 300 mg |
Other ingredients: hypoallergenic plant fiber (cellulose), vegetarian capsule (cellulose, water), ascorbyl palmitate
Recommended use
As a dietary supplement, take 1 capsule, 1-2 timesdaily, with meals.
Serving size: 1-2
Days Supply: 60 - 120
Cost Per Day: $0.40
Product Categories: Pure Encapsulations, Aging, Allergies, Antioxidants, Cellular, Cold / Flu, General / Foundational Health, Immune, Respiratory, Vitamins & Minerals
UPC: 766298024745
Product Information
Why take this product?
- Promotes healthy mast cell stabilization and supports overall immune health.
- Contains a potent, bioactive flavonoid that delivers antioxidant protection for cellular wellness.
- Each capsule provides 300 mg of highly bioavailable Quercetin Phytosome™ (QuerceFit®).
- Features enhanced absorption for optimal bioavailability of quercetin.
How it works
Quercetin UltraSorb is a powerful dietary supplement designed to deliver superior bioavailability and enhanced absorption of quercetin, thanks to its patented QuerceFit® quercetin-phospholipid complex. This advanced formulation uses proprietary phytosome technology, which combines quercetin from Sophora japonica flower extract with phospholipids derived from sunflower in a 1:1 ratio. This unique combination helps protect quercetin from degradation in the digestive tract and improves its absorption across cellular membranes, ensuring that the body receives maximum benefits. A human pharmacokinetic study found that QuerceFit® increased quercetin’s bioavailability by an impressive 20-fold compared to regular quercetin.
Quercetin is a natural polyphenolic flavonoid known for its cellular and immune-modulating properties. It has been shown to support cellular regulation through its action as a SIRT1 inducer, promoting autophagy—the body’s natural process for renewing and recycling cellular components. This powerful antioxidant also boosts the body’s glutathione levels, further enhancing its ability to combat oxidative stress. Research indicates that quercetin plays a key role in supporting overall immune function, respiratory health, and nasal comfort, making it an essential supplement for individuals seeking to optimize their health.
In addition to its antioxidant effects, quercetin has demonstrated potential in stabilizing mast cells, which helps moderate the release of immune mediators involved in inflammation and allergic responses. This makes Quercetin UltraSorb an excellent choice for those looking to improve their immune resilience and reduce the discomfort associated with seasonal allergies or other immune-related concerns. A pilot trial involving Quercetin Phytosome™ supplementation for 30 days showed that it not only supported antioxidant defenses but also contributed to improved respiratory function and comfort.
For anyone looking to support their overall health, Quercetin UltraSorb offers a high-quality, bioavailable form of quercetin that is both effective and easily absorbed. With its powerful antioxidant properties and immune-supportive benefits, this supplement is ideal for those seeking to enhance their cellular health, fight oxidative stress, and maintain a healthy immune system. Whether you’re looking to improve your respiratory function, support your immune system, or promote cellular renewal, Quercetin UltraSorb is the supplement you need for optimal wellness.
