Quercetin UltraSorb

• Supports healthy mast cell stabilization and immune health^‡
• Highly bioactive flavonoid offers antioxidant support for cellular health^‡
• Provides 300 mg of QuerceFit^® quercetin phytosome per capsule
• enhanced-absorption and bioavailable quercetin

Suggested Use

As a dietary supplement, take 1 capsule, 1-2 timesdaily, with meals.

Indications

• Ages 18 and up
• Supports healthy immune function and cellular health^‡

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.

Warning

If you are pregnant or lactating, have any healthcondition or are taking any medication, consult yourhealth professional before use.

Storage

Store in a cool, dry place.

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