Quercetin capsules Support Immune Response GMP certification



Product Overview:
Quercetin is a natural flavonoid compound widely found in plants. It has various biological activities such as anti-oxidation, anti-inflammation, and anti-cancer. It is commonly found in foods such as apples, onions, and tea, and is a hot topic in dietary supplement and drug research.
Efficacy: Health Care Supplement
Quercetin capsules Support Immune Response GMP certification Details
| Product Name | Quercetin capsules GMP certification | Reson |
| Appearance | capsules |
| Specification | 500mg/Cap,1000mg/Cap or as your request |
| Certification | ISO,Halal,HACCP |
| Keywords | Quercetin capsules, Quercetin for immune system, Natural histamine blocker |
| Storage | Keep in a cool, dry, dark location in a tightly sealed container or cylinder. |
| Shelf Life | 24 Months |
Main Bioactivities and Mechanisms of Action
1. Antioxidant Effects
- Quercetin protects cells from oxidative damage by scavenging free radicals and inhibiting lipid peroxidation, potentially delaying aging and the progression of chronic diseases.
2. Anti-inflammatory Effects
- Quercetin inhibits the release of inflammatory factors (such as NF-κB and COX-2), reducing inflammatory responses and having a certain adjuvant effect on arthritis and allergic diseases.
3. Anti-cancer Potential
- Experimental studies have shown that quercetin can induce apoptosis in cancer cells and inhibit angiogenesis, but clinical evidence requires further verification.
4. Cardiovascular Protection
- Quercetin improves vascular endothelial function and reduces low-density lipoprotein (LDL) oxidation, potentially reducing the risk of atherosclerosis.
Application Areas and Research Progress
1. Dietary Supplements
- As an antioxidant, it is often used to enhance immunity or relieve post-exercise fatigue, but dosage should be carefully monitored (generally recommended 500-1000mg daily).
2. Drug Development
- Research is underway into its potential in antiviral applications (e.g., inhibiting influenza virus replication), hypoglycemic agents, and neuroprotective agents.
3. Food Industry
- As a natural preservative, it extends the shelf life of food.
| OEM Service | ||||
| We offer OEM services, please contact us for more information>> | ||||
| Product Type | Capsules,Softgels,Tablets,Gummies,Liquid Drops,Gum,solid beverage and other customized products | |||
| Packaging | Bottles, Bags, Bulk, Blister packs, Custom | |||
| Formulas | Standard formulas or custom formulas | |||
| OEM service | Support OEM&ODM Custom service,Different Formula,Flavors, Shapes,Bottle ,Color | |||
3 Core Pillars of Quercetin Support
1. Seasonal & Respiratory Comfort
- Quercetin is a natural mast-cell stabilizer. By helping to regulate the release of histamine, it provides a non-drowsy way to manage seasonal sensitivities—helping you breathe easier during high-pollen months.
- As a powerful polyphenol, Quercetin neutralizes free radicals that cause oxidative stress. It supports vascular health by promoting healthy blood flow and protecting the integrity of your blood vessel walls.
- In the field of anti-aging, Quercetin is studied as a senolytic—a compound that helps the body manage and clear out "zombie" (senescent) cells. This supports tissue renewal and long-term vitality.
- The "Fat-Soluble" Secret: Like many flavonoids, Quercetin can be tricky for the body to absorb. Always take your capsule with a meal containing healthy fats (like olive oil or nuts) to significantly increase bioavailability.
- The Vitamin C Duo: Vitamin C helps "recycle" Quercetin in the body, preventing it from oxidizing and extending its protective effects.
- Timing: For seasonal allergies, start taking Quercetin 2–3 weeks before the high-pollen season begins to stabilize your system in advance.
Frequently Asked Questions
Q: Will Quercetin make me feel sleepy?
- A: No. Unlike over-the-counter antihistamines, Quercetin is non-drowsy and supports a healthy histamine response without affecting your energy levels.
- A: Absolutely. In fact, we highly recommend it. Quercetin and Zinc are a synergistic pair designed by nature to work together.
- A: Yes. Most studies focus on daily doses of 500mg to 1000mg. It is considered very safe for long-term immune maintenance.
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Magnesium Effervescent Tablets |
| Click here to get a product quote. | ||||
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OWN Brand
Intergroup is supplying OEM service for the Well-known brands Reson and Ausreson. Alibaba International Station No.1 supplier, Alibaba International Station Number 1, Alibaba International Station Number one Customized logo is welcome, Packing as your requirement. offering private label

Cusrom Process
01 Contact us 02 Confirm Product Formula 03 Sample Confirmation 04 Deposit Payment 05 Factory Production 06 Product Quallty Inspectlon 07 Balance Payment 08 Dispatch and Delvery


Factory & Exhibition
Private Label design, fast delivery, USA Warehouse, European Warehouse, capsules factory,Softgels factory,tablets factory, pills factory, Gummies factory, Liquid Drops factory,Gum factory,solid beverage factory, customized factory, capsules manufacturer, Softgels manufacturer, tablets manufacturer, pills manufacturer, Gummies manufacturer, Liquid Drops manufacturer,Gum manufacturer,solid beverage manufacturer.
In order to better serve our global customers, we will participate in various large-scale exhibitions.Europe, North America

Certifications
We are a nutritional supplement raw material and nutritional supplement brand OEM manufacturing factory in China with ISO 22000, ISO 9001, HACCP Management certifications, GMP certificate the factory, HALAL, CE, CE-ROHS, Organic, KOSHER, NSF Product certifications.Our product's comprehensive certification standards.

Packaging
We promise to provide high-quality products, but please raise any quality issues within 15 days of receiving the package.
From concept to finished product, we are committed to quality, efficiency, and customer satisfaction. Let us help you bring your product to life!

FAQs
Q: What kind of OEM forms can you supply ?
A: Pre mix powder, Capsules, Tablets, pills, Softgel,drops, Gummy.
Q: What's the pill size?
A: Capsule: 2#,1#,0#, 00#. Tablet: Can customize like 500mg, 1000mg, 1500mg, 2000mg
Q: What are capsule shells made of ?
A: Gelatin,HPMC (Vegan), Enteric gelatin & enteric vegan shells.
Q: Can the formula be customized by our Own Formula?
A: Yes, The formula can be exact customized.
Q: Minimum Order Quantity (MOQ) ?
A: Small quantity sample can be customized according to your requirements. Official order MOQ: 100,000 pieces
Q: Can you supply bottles with private label?
A: Yes, all can be customized.
Q: What kind of certificates can you supply for your OEM capsules / Tablets?
A: Health certificate, Original certificate.







