Quercetin UltraSorb 90c

Quercetin UltraSorb by Pure Encapsulations provides super-absorbable, antioxidant support for respiratory function and nasal comfort.*

 

Pure Encapsulations suggests, ages 18 and older, taking 1 capsule of Quercetin UltraSorb 1-2 times daily, with meals.

 

Serving Size: 1 capsule

Servings Per Container: 90

 

Quercefit® quercetin phytosome 300 mg
(Quercetin and sunflower phospholipid complex)
(standardized to contain 34% quercetin)

 

Other ingredients: hypoallergenic plant fiber (cellulose), vegetarian capsule (cellulose, water), ascorbyl palmitate

 

Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.

 

Store in a cool, dry place.

GMO Free, Vegan, Vegetarian

 

Source

• Quercetin is derived from Japanese pagoda tree (Sophora japonica) flower
• Phytosome phospholipids are sourced from sunflower
• Hypoallergenic plant fiber is derived from pine cellulose
• Ascorbyl palmitate is derived from corn dextrose fermentation and palm oil

Verifiable Science
Quercetin UltraSorb contains the patented QuerceFit® quercetin-phospholipid complex forenhanced absorption and bioavailability. The proprietary phytosome technology combines quercetin from Sophora japonica flower extract and phospholipids from sunflower in a 1:1 ratio, promoting resistance to degradation in the digestive tract and efficient absorption across membranes. A randomized crossover human pharmacokinetic study compared QuerceFit® with regular quercetin and found the phytosome improved the bioavailability of quercetin by 20-fold.1 Quercetin is a polyphenolic flavonoid known to exhibit cellular and immune-moderating activity. Research suggests that quercetin acts as a SIRT1 inducer to promote cellular regulation and autophagy, the natural process of degradation and recycling of cellular components to promote renewal.2,3 It also increases the body’s antioxidant capacity in part by regulating levels of glutathione.4,5 In a pilot trial involving adults, supplementation for 30 days with 250 mg or 500 mg QuerceFit® quercetin phytosome supported antioxidant defenses and helped support respiratory function and nasal comfort.6 Preliminary research suggests that quercetin helps to stabilize mast cells and moderate the release of immune mediators.7-9 ‡

References
1. Riva A, et al. Eur J Drug Metab Pharmacokinet. 2019; 44(2): 169–177.
2. Nieman DC, et al. Med Sci Sports Exerc. 2010 Feb;42(2):338-45.
3. Rezabakhsh A, et al. Phytomedicine. 2019 Mar 15; 56():183-193.
4. Xu D, et al. Molecules. 2019 Mar; 24(6): 1123.
5. Riva A, et al. Minerva Med. 2018 Aug;109(4):285-289.
6. Cesarone MR, et al. Minerva Med. 2019 Dec;110(6):524-529.
7. Micek J, et al. Molecules 2016, 21(5), 623
8. Weng Z, et al. PLoS One. 2012;7(3):e33805.
9. Park HH, et al. Arch Pharm Res. 2008 Oct;31(10):1303-11.