Quercetin Powder

Premium Quercetin Powder - Natural Flavonoid Extract for Health Supplements

Hunan Clover Origins Biotech supplies pharmaceutical quality Quercetin Powder from Sophora japonica flower buds with 95% purity by HPLC test. With more than 25 years of experience with botanical extracts and with yearly production of more than 5,000 tons, we keep stock-ready inventory with 1-2 day dispatch for regular orders and turnaround of 5-10 days for special demands. Your formulations are compliant with worldwide regulatory requirements at our FDA registered facilities that are accredited in ISO 9001, HACCP, FSSC 22000, Kosher and Halal. We serve makers of nutritional supplements, functional food brands and nutraceutical enterprises globally. Flexible MOQ, competitive price and technical help responded within 1 hour.

What Makes Our Quercetin Powder Stand Out?

Our product is a natural extract from high-quality Sophora japonica buds harvested in China. We don't utilize synthetic replacements. Instead, we use a clean ethanol and water extraction procedure that preserves the bioactive polyphenol structure.

You will get a bright yellow crystalline powder with five hydroxyl groups that give strong antioxidant activity. The dihydrate form (C15H10O7·2H2O) is more stable than the anhydrous forms and so it is preferred for encapsulation and tableting.

Every batch is rigorously tested by third party labs – Eurofins, SGS and Alkemist Labs. We test for active substances, heavy metals, pesticide residues, microbiological pollutants and ethylene oxide levels in an effort to comply with the EU and US market regulations.

Technical Specifications

How Quercetin Works in Your Body

Quercetin is a natural antihistamine and anti-inflammatory in several ways. It stabilizes mast cells to limit the release of histamine and is hence useful in formulations for the alleviation of allergies.

The chemical suppresses the NF-κB signaling pathway, which regulates inflammatory cytokines such as TNF-α and IL-6. It is good for joint health and heart health.

Quercetin Powder is a powerful ROS scavenger that protects cells from oxidative stress and increases the activity of your body's antioxidant enzymes. It affects COX and LOX enzymes involved in inflammatory response .

Research suggests possible antiviral properties and immune modulating effects. This makes it excellent for immune support supplements and sports recovery mixtures.

Application Solutions for Your Products

Nutritional Supplements

Develop capsules, pills or softgels for seasonal allergy support, cardiovascular health and antioxidant protection. Our powder is free-flowing in encapsulation equipment and has a uniform bulk density.

Functional Foods & Beverages

Standard quercetin isn't very water-soluble ; however, our technical staff can offer micronized forms or recommend mixing with bioavailability boosters like piperine or bromelain for beverage applications.

Exercise Nutrition

Can be used with other antioxidants for post workout recovery solutions. The anti-inflammatory qualities help in decreasing exercise caused oxidative damage.

Immune Health Products

Use in immune support formulations for respiratory health and immunological balance during seasonal challenges.

Quality Control That Protects Your Brand

You need vendors who know regulatory compliance. Our quality system is throughout the process from selection of raw materials to final dispatch.

There's full traceability, batch specific testing. Carbon-14 testing to confirm natural botanical origin versus synthetic.

Independent third-party verification is provided by NSF, Eurofins, and SGS. Certificates of Analysis, allergies declarations and regulatory compliance paperwork will be provided within 12 hours of a request.

Our quality standards comply with export standards such as FDA standards, EU Novel Food standards and Chinese SC standards. This offers you the confidence to access regulated overseas marketplaces.

It is stored in temperature controlled storage and packaged in light resistant containers to prevent degradation. As quercetin degrades fast in alkaline environments above pH 7 under heat, we monitor pH exposure during processing.

Manufacturing Capabilities & Custom Solutions

Need specific particle size distribution for better dissolution? Our R&D team develops customized specifications based on your formulation requirements.

We offer micronized powder (d90 < 10 microns) to improve bioavailability. Phytosome and liposomal delivery systems are available for liquid applications where standard powder won't dissolve.

Our OEM/ODM services include:

• Custom compound formulations
• Premix development with complementary ingredients
• Multiple dosage forms: capsules, gummies, liquids, powder blends
• Strict confidentiality for proprietary formulas

With three manufacturing facilities and 5,000+ ton annual capacity, we handle both small pilot batches and large-scale production runs. Flexible MOQ accommodates emerging brands and established manufacturers alike.

FAQ

Q: What's the difference between Quercetin Dihydrate and Quercetin Anhydrous?

A: Dihydrate contains water molecules in the crystal structure (typically 85-95% assay), offering better stability and cost-effectiveness for most supplement applications. Anhydrous eliminates this water for 98%+ potency per gram but is more hygroscopic and less stable in storage.

Q: How do I increase bioavailability in my finished product?

A: Crystalline quercetin has poor intrinsic absorption. We advocate micronized powder and combining with piperine or bromelain as bio-enhancers to boost surface area. Phytosome/liposomal delivery systems encapsulate the substance in phospholipid bilayer for improved uptake.

Q: Your powder is synthetic or natural?

A: Our product is 100% natural, extracted from Sophora japonica flower buds. Carbon-14 tests and a unique impurity profile consistent with a plant extraction and inconsistent with synthetic alternatives are used to confirm botanical provenance.

Q: Why does color vary between batches?

A: Minor deviations from bright yellow to greenish yellow are anticipated due to the harvest seasonality of the Sophora japonica raw material. However, a dull orange or brown color shows that the product has been exposed to oxidation and quality has degraded, which our careful storage practices prevent.

Q: What are the parameters that prevent degradation?

A: Quercetin should be stored in double-lined polyethylene bags in fiber drums, away from light, moisture and metallic catalysts. Exposure to these elements promotes oxidation, which turns the powder dark and reduces the antioxidant efficacy.

Q: Does it work in heat-processed products?

A: Yes, quercetin remains relatively stable during tablet compression and pasteurization with its 300°C+ melting point. But do not combine alkaline (>7) conditions with heat, which speeds up degradation.

Q: How do you know that it is the real thing and not some cheap adulterant?

A: Simple UV tests are not enough, as many flavonoids have identical absorbance. We guarantee identity using HNMR (proton nuclear magnetic resonance) or IR spectrum against USP Reference Standards to prove it is the real thing and not some generic knock off.

Ready to Source Premium Quercetin Powder?

Contact us today at info@cloverorigins.com to discuss your Quercetin Powder formulation needs and receive technical documentation for your next product development project.