Xi'an Sonwu Biotech Co., Ltd. is one of the most professional manufacturers and suppliers of organic quercetin powder in China. We warmly welcome yuo to wholesale bulk organic quercetin powder for sale here from our factory. Quality products and reasonable price are available.
What is quercetin?
Quercetin, also known as onionin, is an important member of flavonoids. It has very important medicinal properties and it's also a universal dietary antioxidant. Quercetin has received widespread attention because of its special antioxidant, anti-inflammatory and anti-allergic, free radical scavenging and immune-modulating effects. This effect is rare in the plant extract nutrition system, so quercetin is known as natural antihistamine, and its most important role is regulating the immune system, which protects people from suffering from inflammation.
Organic quercetin powder is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, seeds, and grains; there are appreciable amounts of quercetin in red onions and kale. Quercetin has a bitter flavor and is used as an ingredient in dietary supplements, beverages, and foods. If you want get quercetin price, please contact Xi'an Sonwu.
Certificate of Analysis
TEST | SPECIFICATION | RESULTS | TEST METHOD |
Appearance Identification Melting point Particle size Bulk density Tapped Density Heavy metals -Arsenic(As) -Lead (Pb) -Mercury(Hg) -Cadmium(Cd) Sulphated Ash Loss on drying Assay | Yellow powder Must positive 305℃—315℃ 95% pass 80mesh ≥0.20gm/cc ≥0.30gm/cc ≤10ppm ≤2ppm ≤2ppm ≤1ppm ≤1ppm ≤0.30% ≤12.0% ≥98.0% | Complies Positive 312℃ Complies 0.23gm/cc 0.34gm/cc 5ppm 0.46ppm 0.52ppm 0.06ppm 0.08ppm 0.23% 9.5 99.75% | Visual Infrared Absorption Melting point Apparatus CP2010 CP2010 CP2010 Atomic Absorption Atomic Absorption Atomic Absorption Atomic Absorption Atomic Absorption CP2010 5g/120C |
Microbiological test Total plate count Mold & Yeast E.Coli Salmonella Staphylococcus | ≤1000cfu/g ≤300cfu/g Negative Negative Negative | 100 cfu/g 10cfu/g Complies Complies Complies | CP2010 CP2010 CP2010 CP2010 CP2010 |
Residual Solvent Pesticide Screen | ≤0.5% Not Detected | Complies Complies | GC GC |
Benefits of Quercetin Supplements
1. Quercetin to aid in the treatment of COVID-19 disease
Coronavirus disease 2019 (COVID-19), declared a global pandemic by the World Health Organization, is a novel viral infection caused by SARS-CoV-2, which is still evolving. The symptoms of COVID-19 are usually fever, sore throat, loss of smell, diarrhea, muscle weakness, and nasal congestion. In severe cases, it can lead to inflammation of the lungs and respiratory distress syndrome.
In 2021, Francesco Di Pierro, a researcher, published the results of two clinical studies on the efficacy of supplemental quercetin in the treatment of early COVID-19 infections. In a group comparison experiment, patients using quercetin as an add-on to standard treatment had a 91.6% reduction in hospitalization days; results of this trial is further validated in Francesco Di Pierro's second study , thus quercetin can be used as an adjunct supplement to treat early symptoms of COVID-19.
2. Effects of quercetin on exercise-induced anemia
The reason of exercise-type anemia is the breakdown of hemoglobin in the human body and the lack of iron during exercise. Quercetin has a very strong antioxidant and chelating effect with ferritin. After taking quercetin, the degree of hemoglobin oxidation can be reduced by 30%, and the level of oxyhemoglobin can be nearly increased by 100%. Quercetin reduces the oxidation of hemoglobin and lipid peroxidation of red blood cell membranes, so as to clear free radicals and stabilize the specific molecular structure of chelation, thereby reducing exercise-induced anemia.
3. The effect of quercetin on asthma
Organic quercetin powder can control the spread of some viruses in the body and reduce tissue damage. A controlled trial of quercetin in the prevention of upper respiratory tract infection showed that taking quercetin at a dose of 1000 mg per day resulted in a lower severity of upper respiratory tract infection and total number of days of infection than patients who did not take quercetin.
Quercetin also stabilizes mast cells in the human body. During an asthma attack, mast cells that are part of the immune system release chemicals such as histamines, cytokines and leukotrienes that they carry. Those chemicals will make patients experience coughing and breathing difficulties. Quercetin can make hypertrophy cells quiet down and release substances that relieve cough symptoms. In addition, the human body has some tyrosine kinase and nitric oxide synthase. These enzymes can make inflammation more serious, and quercetin can play a good role in inhibiting. These anti-tussive and anti-inflammatory effects make quercetin become a better natural anti-asthma drug.
4. Quercetin regulates blood pressure and maintains cardiovascular and cerebrovascular health.
Pure quercetin increases the resistance of capillaries by reducing capillary fragility, reduces blood pressure, blood lipids, increases coronary blood flow, and prevents cardiovascular and cerebrovascular diseases.
In addition, quercetin also helps to lose weight and inhibit allergic diseases.
Side Effects of Quercetin Supplement
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1. Quercetin has a damaging effect on the skin. Direct contact with the skin will damage the skin and cause urticaria and pustules.
2. Quercetin powder can easily cause acid reflux. Too much quercetin can damage the spleen and stomach, causing indigestion, hyperacidity, and increased inflammation in the body, leading to stiffness in the joints.
3. Quercetin can cause fetal malformations, so pregnant women should not take it.
Xi'an Sonwu can supply pure quercetin powder and quercetin capslues, if you want to know if quercetin is suitable for you, please contact Xi'an Sonwu.
Quercetin Reddit
Extraction Process
Recommedation
We also supply OEM Service, capsule, customized order (bottles+labels).
And hot-selling dosage is 100mg/caps~500mg/caps.
Bulk capsule
Customized order
Note: as with any supplement, if introducing quercetin to your routine for the first time, trial a low dose as a standalone first to assess your individual response.
Packaging & Shipping
Express | Fedex | EMS | Epacket/NL post | DHL/USPS/TNT/UPS |
Quantity | No weight limit | No weight limit | Under 2kg | No weight limit |
Shipping time | 7 to 10 days | 10 to 15 days | About 30 days | 7 to 15 days |
Service | Door to door service | |||
Packing | Powder : Vacuum sealed foil packing OEM : Vacuum sealed foil packaging or packing for bottles | |||
Manufacturers
Xi'an Sonwu Biotech Co,ltd is a manufacturer dedicated to the integration of production, manufacturing and sales. Xi'an Sonwu has more than ten years of manufacturing and sales experience, and has its own production plant and production equipment. In addition, there are independent laboratory testing rooms, advanced testing equipment and professional testing personnels who provide effective data for our products with a rigorous attitude and manufacture products that meet customer needs.
Whhere can I buy quercetin?
There are more and more platforms selling quercetin powder and capsules on the market. When looking for suppliers, please give priority to manufacturers with years of accumulated experience, because the product quality of the manufacturers has undergone strict third-party testing, and they have the qualifications to sell and low prices.
You are lucky, you are currently browsing a manufacturer with more than ten years of manufacturing and sales experience---Xi'an Sonwu. So if you want buy organic quercetin powder or interest in Xi'an Sonwu, or have other questions about the product, just contact Xi'an Sonwu.
Email: sales@sonwu.com
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