{"num_reviews":0,"url":"https://covenanthealthproducts.com/quercetin-ultrasorb-90c-pure-encapsulations/","add_this":[{"service":"facebook","annotation":""},{"service":"twitter","annotation":""},{"service":"linkedin","annotation":""}],"gtin":null,"brand":{"name":"Pure Encapsulations","url":"https://covenanthealthproducts.com/pure-encapsulations/"},"id":27344,"can_purchase":true,"meta_description":"Looking for a supplement for respiratory function and nasal comfort.? Try this super-absorbable quercetin product. SAVE NOW with FREE Shipping","category":["Brands/Pure Encapsulations Supplements and Vitamins"],"AddThisServiceButtonMeta":"","main_image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/27344/32505/quercetin-ultrasorb-90c-pure-encapsulations__76944.1711371326.jpg?c=1","alt":"Quercetin UltraSorb 90c Pure Encapsulations"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=27344","shipping":{"calculated":true},"custom_fields":[{"id":"144692","name":"Brand","value":"<a href='/Pure-Encapsulations_c_238.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/pure-encapsulations_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":"144693","name":"Questions","value":"<a href=\"https://covenanthealthproducts.com/need-product-help\"><strong>Questions About this Product?</strong></a>"}],"sku":"PUR-QUS9","description":"<div id=\"description\">\n<h3>Quercetin UltraSorb 90c - Pure Encapsulations</h3>\n<p><strong>Cardiometabolic Health and Metabolism</strong></p>\n<ul>\n<li>Supports healthy mast cell stabilization and immune health*</li>\n<li>Highly bioactive flavonoid offers antioxidant support for cellular health*</li>\n<li>Provides 300 mg of QuerceFit&reg; quercetin phytosome per capsule</li>\n<li>enhanced-absorption and bioavailable quercetin</li>\n</ul>\n<div><strong>Quercetin UltraSorb</strong> by Pure Encapsulations provides super-absorbable, antioxidant support for respiratory function and nasal comfort.*</div>\n<div>&nbsp;</div>\n<div><span style=\"font-weight: bold;\">Recommendation:&nbsp;</span></div>\n<div>Pure Encapsulations suggests, ages 18 and older, taking 1 capsule of <strong>Quercetin UltraSorb</strong> 1-2 times daily, with meals.</div>\n<div>&nbsp;</div>\n<div><span style=\"font-weight: bold;\">Serving Size</span>: 1&nbsp;capsule</div>\n<div><span style=\"font-weight: bold;\">Servings Per Container:&nbsp;</span>90</div>\n<div>&nbsp;</div>\n<div><span style=\"font-weight: bold;\">Amount Per Serving:</span></div>\n<div>Quercefit&reg; quercetin phytosome 300 mg<br />(Quercetin and sunflower phospholipid complex)<br />(standardized to contain 34% quercetin)</div>\n<div>&nbsp;</div>\n<div><span style=\"font-weight: bold;\">Other ingredients:</span> hypoallergenic plant fiber (cellulose), vegetarian capsule (cellulose, water), ascorbyl palmitate</div>\n<div>&nbsp;</div>\n<div><strong>Warning:</strong> If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.</div>\n<div>&nbsp;</div>\n<div>Store in a cool, dry place.<br /><br />GMO Free, Vegan, Vegetarian</div>\n<div>&nbsp;</div>\n<div><strong>Source</strong>\n<ul>\n<li>Quercetin is derived from Japanese pagoda tree (Sophora japonica) flower</li>\n<li>Phytosome phospholipids are sourced from sunflower</li>\n<li>Hypoallergenic plant fiber is derived from pine cellulose</li>\n<li>Ascorbyl palmitate is derived from corn dextrose fermentation and palm oil</li>\n</ul>\n<p><strong>Verifiable Science</strong><br />Quercetin UltraSorb contains the patented QuerceFit&reg; 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&reg; 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&rsquo;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&reg; 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 &Dagger;<br /><br /><strong>References</strong><br />1. Riva A, et al. Eur J Drug Metab Pharmacokinet. 2019; 44(2): 169&ndash;177.<br />2. Nieman DC, et al. Med Sci Sports Exerc. 2010 Feb;42(2):338-45.<br />3. Rezabakhsh A, et al. Phytomedicine. 2019 Mar 15; 56():183-193.<br />4. Xu D, et al. Molecules. 2019 Mar; 24(6): 1123.<br />5. Riva A, et al. Minerva Med. 2018 Aug;109(4):285-289.<br />6. Cesarone MR, et al. Minerva Med. 2019 Dec;110(6):524-529.<br />7. Micek J, et al. Molecules 2016, 21(5), 623<br />8. Weng Z, et al. PLoS One. 2012;7(3):e33805.<br />9. Park HH, et al. Arch Pharm Res. 2008 Oct;31(10):1303-11.</p>\n</div>\n<div><hr /></div>\n<div><em><span style=\"color: #14328c; font-weight: bold;\">Pure Encapsulations logo, text, graphics, and photo images are the property of Soci&eacute;t&eacute; des Produits Nestl&eacute; S.A. and are used with permission. Copyright &copy; 2021.</span></em></div>\n<div>&nbsp;</div>\n</div>","tags":[],"warranty":"","price":{"without_tax":{"formatted":"$47.40","value":47.4,"currency":"USD"},"tax_label":"Tax"},"detail_messages":"","availability":"Usually Ships in 2 Business Days","page_title":"Quercetin UltraSorb 90c - Pure Encapsulations","cart_url":"https://covenanthealthproducts.com/cart.php","max_purchase_quantity":0,"mpn":"QUS9","upc":"766298024745","options":[{"id":46046,"type":"Configurable_PickList_Set","display_name":"Recurring Order","required":true,"condition":false,"state":"modifier","values":[{"label":"One Time Purchase","id":48845,"data":"One Time Purchase","selected":true},{"label":"Every 20 Days","id":48846,"data":"Every 20 Days","selected":false},{"label":"Every 30 Days","id":48847,"data":"Every 30 Days","selected":false},{"label":"Every 40 Days","id":48848,"data":"Every 40 Days","selected":false},{"label":"Every 45 Days","id":159647,"data":"Every 45 Days","selected":false},{"label":"Every 60 Days","id":48849,"data":"Every 60 Days","selected":false},{"label":"Every 90 Days","id":48850,"data":"Every 90 Days","selected":false},{"label":"Every 120 Days","id":48851,"data":"Every 120 Days","selected":false},{"label":"Every 180 Days","id":48852,"data":"Every 180 Days","selected":false}],"partial":"set-select"}],"related_products":[{"id":16791,"sku":"DD0059","name":"Quercetin Plus 90c","url":"https://covenanthealthproducts.com/dadamo-quercetin-plus-90-capsules-by-dadamo-personalized-nutrition","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"D Adamo Personalized Nutrition"},"category":["Brands/D'Adamo Personalized Nutrition Supplements"],"summary":"Quercetin Plus 90c by D Adamo Personalized NutritionQuercetin Plus by D Adamo Personalized Nutrition provides&nbsp;many beneficial effects on human health, including cardiovascular and stomach health...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/16791/20635/DD0059__87380.1638816796.jpg?c=1","alt":"Quercetin Plus 90c by D'Adamo Personalized Nutrition"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/16791/20635/DD0059__87380.1638816796.jpg?c=1","alt":"Quercetin Plus 90c by D'Adamo Personalized Nutrition"}],"date_added":"Dec 06, 2021","pre_order":false,"show_cart_action":true,"has_options":true,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":131240,"name":"Brand","value":"<a href='/brands/dadamo-personalized-nutrition/'><img src=\"https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/d-adamo-personalized-nutrition_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":131241,"name":"Questions","value":"<a href=\"https://covenanthealthproducts.com/need-product-help\"><strong>Questions About this Product?</strong></a>"}],"num_reviews":0,"weight":{"formatted":"0.25 Ounces","value":0.25},"demo":false,"price":{"without_tax":{"currency":"USD","formatted":"$35.95","value":35.95},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=16791"},{"id":15797,"sku":"DF-QUN090","name":"Quercetin + Nettles 90c","url":"https://covenanthealthproducts.com/quercetin-plus-nettles-90-capsules-by-designs-for-health","availability":"Usually Ships in 48 to 72 Hours","rating":5,"brand":{"name":"Designs for Health"},"category":["Brands/Designs For Health Supplements and Vitamins"],"summary":"\nQuercetin + Nettles 90c by Designs for Health &nbsp;\nQuercetin + Nettles by Designs for Health offers a unique combination of 600 mg of quercetin and 600 mg of nettles. Quercetin is a flavonoid...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/15797/36466/Quercetin_nettles-90vc-desings-for-health__98707.1737406430.jpg?c=1","alt":"Quercetin + Nettles 90c by Designs for Health"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/15797/36466/Quercetin_nettles-90vc-desings-for-health__98707.1737406430.jpg?c=1","alt":"Quercetin + Nettles 90c by Designs for Health"}],"date_added":"Dec 06, 2021","pre_order":false,"show_cart_action":true,"has_options":true,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":131932,"name":"Brand","value":"<a href='/Designs-For-Health_c_35.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/designs-for-health_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":131933,"name":"Questions","value":"<a href=\"https://covenanthealthproducts.com/need-product-help\"><strong>Questions About this Product?</strong></a>"}],"num_reviews":2,"weight":{"formatted":"0.27 Ounces","value":0.27},"demo":false,"price":{"without_tax":{"currency":"USD","formatted":"$43.49","value":43.49},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=15797"},{"id":27667,"sku":"PUR-QUE11-1","name":"Quercetin 120c","url":"https://covenanthealthproducts.com/quercetin-120c/","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"Pure Encapsulations"},"category":["Brands/Pure Encapsulations Supplements and Vitamins","Clinic Recommended Products","Clinic Recommended Products/Immune Support Supplements","Clinic Recommended Products/Allergy Products","GLP-1 Support Supplements"],"summary":"Quercetin 120c by Pure Encapsulations&nbsp;\nQuercetin 120c is a supplement designed by Pure Encapsulations with two goals in mind: improving immunity and cellular health.* According to Pure...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/27667/32905/quercetin-120c-pure-encapsulations__14661.1713473649.jpg?c=1","alt":"Quercetin 120c by Pure Encapsulations"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/27667/32905/quercetin-120c-pure-encapsulations__14661.1713473649.jpg?c=1","alt":"Quercetin 120c by Pure Encapsulations"}],"date_added":"Apr 18, 2024","pre_order":false,"show_cart_action":true,"has_options":false,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":151679,"name":"Brand","value":"<a href='/Pure-Encapsulations_c_238.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/pure-encapsulations_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":151680,"name":"Questions","value":"<a href=\"https://covenanthealthproducts.com/need-product-help\"><strong>Questions About this Product?</strong></a>"},{"id":151681,"name":"Clinic Approved","value":"Yes"}],"num_reviews":0,"weight":{"formatted":"0.15 Ounces","value":0.15},"demo":false,"add_to_cart_url":"https://covenanthealthproducts.com/cart.php?action=add&product_id=27667","price":{"without_tax":{"currency":"USD","formatted":"$48.40","value":48.4},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=27667"},{"id":14911,"sku":"PUR-QUE10-1","name":"Quercetin","url":"https://covenanthealthproducts.com/quercetin/","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"Pure Encapsulations"},"category":["Brands/Pure Encapsulations Supplements and Vitamins"],"summary":"\nQuercetin by Pure Encapsulations&nbsp;\nQuercetin is a dietary supplement designed to support cellular, cardiometabolic, and immune health. It is made up of hypoallergenic, vegan ingredients and...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/14911/32504/quercetin-60c-pure-encapsulations__06539.1711371325.jpg?c=1","alt":"Quercetin 60c Pure Encapsulations"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/14911/32504/quercetin-60c-pure-encapsulations__06539.1711371325.jpg?c=1","alt":"Quercetin 60c Pure Encapsulations"}],"date_added":"Dec 06, 2021","pre_order":false,"show_cart_action":true,"has_options":true,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":145500,"name":"Brand","value":"<a href='/Pure-Encapsulations_c_238.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/pure-encapsulations_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":145501,"name":"Questions","value":"<a href='/complimentary-product-consultation/'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/need_someone_to_talk_to_250px.png\"></a><div><a href=\"/need-product-help\">Talk to an Expert</a></div>"},{"id":153429,"name":"Blog Post","value":"<a href='/our-blog/unlocking-health-benefits-quercetin-by-pure-encapsulations'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/Click_here_for_Blog_250px.png\"></a><a href=\"/blog\">View Blog Post</a>"}],"num_reviews":0,"weight":{"formatted":"0.10 Ounces","value":0.1},"demo":false,"price":{"without_tax":{"currency":"USD","formatted":"$27.80","value":27.8},"price_range":{"min":{"without_tax":{"currency":"USD","formatted":"$27.80","value":27.8},"tax_label":"Tax"},"max":{"without_tax":{"currency":"USD","formatted":"$48.40","value":48.4},"tax_label":"Tax"}},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=14911"},{"id":27520,"sku":"PUR-BUS6","name":"Berberine Ultrasorb 60c","url":"https://covenanthealthproducts.com/berberine-ultrasorb-60c/","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"Pure Encapsulations"},"category":["Brands/Pure Encapsulations Supplements and Vitamins"],"summary":"\nBerberine Ultrasorb 60c by Pure Encapsulations&nbsp;\n\nBerberine UltraSorb features Berbervis®, a berberine phytosome designed to optimize bioavailability. Rigorous randomized, placebo-controlled...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/27520/32054/berberine-ultrasorb-60c-pure-encapsulations__16771.1711371221.jpg?c=1","alt":"Berberine Ultrasorb 60c Pure Encapsulations"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/27520/32054/berberine-ultrasorb-60c-pure-encapsulations__16771.1711371221.jpg?c=1","alt":"Berberine Ultrasorb 60c Pure Encapsulations"}],"date_added":"Oct 26, 2023","pre_order":false,"show_cart_action":true,"has_options":true,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":144800,"name":"Brand","value":"<a href='/Pure-Encapsulations_c_238.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/pure-encapsulations_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":144801,"name":"Questions","value":"<a href='/need-product-help'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/need_someone_to_talk_to_250px.png\"></a><div><a href=\"/need-product-help\">Talk to an Expert</a></div>"}],"num_reviews":0,"weight":{"formatted":"0.55 Ounces","value":0.55},"demo":false,"price":{"without_tax":{"currency":"USD","formatted":"$49.50","value":49.5},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=27520"},{"id":24725,"sku":"SOU-SN7463","name":"Activated Quercetin 100t","url":"https://covenanthealthproducts.com/activated-quercetin-100t-by-source-naturals","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"Source Naturals"},"category":["Brands/Source Naturals Supplements and Vitamins"],"summary":"Activated Quercetin 100t by Source NaturalsActivated Quercetin 100t by Source Naturals is a unique bioflavonoid derived from plant sources. In human cell culture studies, quercetin has been shown to...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/24725/27642/SN7463__72798.1638817110.jpg?c=1","alt":"Activated Quercetin 100t by Source Naturals"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/24725/27642/SN7463__72798.1638817110.jpg?c=1","alt":"Activated Quercetin 100t by Source Naturals"}],"date_added":"Dec 06, 2021","pre_order":false,"show_cart_action":true,"has_options":true,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":148418,"name":"Brand","value":"<a href='/Source-Naturals_c_2824.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/source-naturals_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":148419,"name":"Questions","value":"<a href=\"https://covenanthealthproducts.com/need-product-help\"><strong>Questions About this Product?</strong></a>"}],"num_reviews":0,"weight":{"formatted":"0.00 Ounces","value":0},"demo":false,"price":{"without_tax":{"currency":"USD","formatted":"$38.98","value":38.98},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=24725"},{"id":22839,"sku":"JAR-J40160","name":"Quercetin 500mg 100c","url":"https://covenanthealthproducts.com/quercetin-500mg-100c-by-jarrow-formulas","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"Jarrow Formulas"},"category":["Brands/Jarrow Formulas Supplements and Vitamins"],"summary":"\nQuercetin 500mg 100c by Jarrow Formulas\nQuercetin is a potent flavonol (a subclass of flavonoids) with antioxidative properties that support cardiovascular health by reducing oxidation of...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/22839/36404/Quercetin_500MG_100caps_Jarrow_formulas__63825.1737045979.jpg?c=1","alt":"Quercetin 500mg 100c by Jarrow Formulas"},"images":[{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/22839/36404/Quercetin_500MG_100caps_Jarrow_formulas__63825.1737045979.jpg?c=1","alt":"Quercetin 500mg 100c by Jarrow Formulas"}],"date_added":"Dec 06, 2021","pre_order":false,"show_cart_action":true,"has_options":true,"stock_level":null,"low_stock_level":null,"qty_in_cart":0,"custom_fields":[{"id":136980,"name":"Brand","value":"<a href='/Jarrow-Formulas_c_1078.html'><img src=https://cdn11.bigcommerce.com/s-35tuw7jhw2/product_images/uploaded_images/brand-logos/jarrow-formulas_278x90.png\" width=\"278\" height=\"90\"></a>"},{"id":136981,"name":"Questions","value":"<a href=\"https://covenanthealthproducts.com/need-product-help\"><strong>Questions About this Product?</strong></a>"}],"num_reviews":0,"weight":{"formatted":"0.25 Ounces","value":0.25},"demo":false,"price":{"without_tax":{"currency":"USD","formatted":"$42.49","value":42.49},"tax_label":"Tax"},"add_to_wishlist_url":"/wishlist.php?action=add&product_id=22839"},{"id":22201,"sku":"ARG-QU300","name":"Quercetin 300 60c","url":"https://covenanthealthproducts.com/quercetin-300-60-capsules-by-allergy-research-group","availability":"Usually Ships in 48 to 72 Hours","rating":0,"brand":{"name":"Allergy Research Group 5-HTP 100mg"},"category":["Brands/Allergy Research Group Supplements and Vitamins"],"summary":"Quercetin 300 60c by Allergy Research GroupQuercetin 300 by Allergy Research Group provides high quality quercetin, derived from a non-citrus plant source, stabilized with additional antioxidants so...","image":{"data":"https://cdn11.bigcommerce.com/s-35tuw7jhw2/images/stencil/{:size}/products/22201/36769/Quercetin_300_Stabilized_with_Antioxidants_60_veg_caps_Allergy_Research__72110.1738576840.jpg?c=1","alt":"Quercetin 300 60c by Allergy Research 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Quercetin UltraSorb 90c

Pure Encapsulations

$47.40
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SKU:
PUR-QUS9
UPC:
766298024745
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Quercetin UltraSorb 90c - Pure Encapsulations

Cardiometabolic Health and Metabolism

  • 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
Quercetin UltraSorb by Pure Encapsulations provides super-absorbable, antioxidant support for respiratory function and nasal comfort.*
 
Recommendation: 
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
 
Amount Per Serving:
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.


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