Highly Absorbable Quercetin for Immune, Antioxidant & Healthy Ageing Support Thorne Quercetin Phytosome provides an advanced, highly bioavailable form of quercetin designed to overcome the naturally poor absorption of standard quercetin supplements. Quercetin is a naturally occurring plant flavonoid found in foods such as onions, apples, berries, grapes and leafy green vegetables. It is well known for its antioxidant activity and its ability to support healthy immune function, a balanced inflammatory response and healthy histamine release. What makes Thorne Quercetin Phytosome different is its use of phytosome technology. Quercetin is bound to sunflower-derived phospholipids, helping it pass more efficiently through the intestinal barrier. Research on this delivery system has demonstrated up to 20 times greater blood levels of quercetin compared with unbound quercetin, allowing effective nutritional support from a relatively small capsule. Key Benefits Supports healthy immune system function Helps maintain a balanced seasonal immune response Supports healthy histamine release and mast-cell function Provides powerful antioxidant protection against free radicals Supports a healthy inflammatory response Helps support respiratory tract health Supports healthy cellular ageing Provides quercetin in a highly absorbable phytosome form Uses sunflower-derived phospholipids Gluten free, dairy free and soy free Why Choose Quercetin Phytosome? Although quercetin occurs naturally in many healthy foods, conventional supplemental quercetin has one significant limitation – it is poorly absorbed by the body. Thorne addresses this problem using advanced Phytosome® technology. A phytosome combines a botanical compound with phospholipids – natural components similar to those found in cell membranes. In Thorne Quercetin Phytosome, quercetin is complexed with sunflower-derived phospholipids, creating a form that can cross the intestinal barrier more efficiently. This enhanced delivery system has been shown to provide up to 20 times greater bioavailability than standard unbound quercetin. This means you can obtain the benefits of quercetin without relying on the very large doses commonly found in conventional quercetin products. Immune & Seasonal Support Quercetin has been extensively studied for its role in immune health. It helps support a balanced immune response and healthy function of several types of immune cells. Quercetin is also particularly interesting for people seeking nutritional support during times of seasonal environmental sensitivity. Quercetin can help support the stability of mast cells – immune cells involved in the storage and release of histamine – helping the body maintain a healthy and balanced histamine response. For this reason, quercetin is commonly included in nutritional protocols focused on seasonal wellness, respiratory health and immune balance. Powerful Antioxidant Protection Quercetin belongs to a family of plant compounds called flavonoids. Flavonoids act as antioxidants, helping neutralise free radicals generated by normal metabolism and everyday environmental exposure. Excess oxidative stress can affect cellular structures and contribute to the normal ageing process. Quercetin provides nutritional antioxidant support to help protect cells from oxidative stress while supporting overall cellular health. Supports a Healthy Inflammatory Response A normal inflammatory response is an important part of the body's natural defence and recovery processes. Quercetin helps support healthy inflammatory signalling and may be particularly useful for individuals looking to support immune, respiratory and general cellular health. Its combination of antioxidant and inflammatory-response support also makes quercetin popular among active individuals and people focused on long-term wellness. Quercetin & Healthy Ageing Quercetin has attracted growing scientific interest in the field of healthy ageing and cellular longevity. Research has investigated quercetin's potential role in cellular processes associated with ageing, including cellular senescence and sirtuin activity. Senescent cells are ageing or dysfunctional cells that have stopped dividing but can remain within tissues. Their accumulation is one of the processes researchers are studying in relation to biological ageing. Combined with quercetin's well-established antioxidant properties, these emerging areas of research make quercetin an increasingly popular nutrient for people interested in healthy ageing and long-term cellular wellbeing. Who May Consider Thorne Quercetin Phytosome? Thorne Quercetin Phytosome may be suitable for people looking to: Support everyday immune health Maintain healthy seasonal immune function Support a balanced histamine response Increase antioxidant intake Support respiratory health Maintain a healthy inflammatory response Support cellular health and healthy ageing Use quercetin without the very high doses required by poorly absorbed conventional forms Each Capsule Provides Quercetin Phytosome (phospholipid complex from sunflower) – 250 mg Serving Size: 1 capsule Servings Per Container: 60 Capsules Per Bottle: 60 Other Ingredients: Hypromellose (derived from cellulose) capsule, leucine, microcrystalline cellulose and silicon dioxide. Suggested Use: Take 1 capsule two to three times daily with meals, or as recommended by your healthcare practitioner. Why Thorne? Thorne is known for producing practitioner-quality nutritional supplements with a strong emphasis on ingredient quality, research and manufacturing standards. Thorne Quercetin Phytosome uses an advanced sunflower-based phospholipid delivery system rather than simply supplying a large quantity of conventional quercetin. The product is also third-party tested to help verify ingredient identity and label accuracy and to check for unsafe levels of contaminants such as heavy metals, pesticides and microorganisms. Thorne Quercetin Phytosome is: Gluten Free Dairy Free Soy Free Made with sunflower-derived phospholipids Supplied in a plant-based hypromellose capsule Third-party tested Important Information Allergy Warning: This product is contraindicated in individuals with a history of hypersensitivity to any of its ingredients. Pregnancy: If pregnant, consult your healthcare practitioner before using this product. Interactions: According to Thorne, there are no known adverse interactions or contraindications at the time of publication. Keep out of reach of children. Nutritional supplements should not replace a balanced diet and healthy lifestyle. If you are taking medication or have an existing health condition, consult your healthcare practitioner before commencing supplementation.