Quercetin Powder is a pure natural plant flavonoid that is primarily produced by extracting flower buds of Sophora japonica, onions, and other abundant botanical materials using a sophisticated extraction and purification procedure using water or ethanol. It looks like a fine crystalline yellow powder that is highly pure, dispersible, and slightly bitter. It is the active ingredient, and it is the main active compound, which is an effective antioxidant and anti-inflammatory, contributes to the stability of different formulations, as well as helps to protect cells against oxidative stress. It has extensive applications in the food and beverage sector as a natural antioxidant and color preservative, the cosmetic sector as a protective and soothing agent, and the pharmaceutical and nutraceutical sectors due to its extensive biological functions. It is also applied in animal food and functional materials because it is a plant-based and environmentally friendly substance. Ongoing studies are still trying to determine its possible applications in the promotion of wellness, enhancing antioxidant capacity, and stabilizing formulation in various products. As the global wellness movement toward natural ingredients and clean formulations continues to increase, it has a high potential in the market as a multifunctional and plant-based bioactive compound used in the present food, cosmetic, and health-product manufacturing sectors.

General Information | |||
Product Name | Quercetin | Part Used | Sophora Japonica Bud |
Item | Specification | Method | Result |
Physical Property | |||
Appearance | Green Yellow Powder | Organoleptic | Conforms |
Loss on Drying | ≤3.0% | HB43-S Moisture Meter | 2.80% |
Ignition Ash | ≤2.0% | USP37<561> | 1.30% |
Mesh Size | 98% Through 80 Mesh | Organoleptic | Conforms |
Contaminants | |||
Mercury(Hg) | ≤0.1mg/Kg | Atomic Absorption | Conforms |
Lead(Pb) | ≤3.0 mg/Kg | Atomic Absorption | Conforms |
Arsenic(As) | ≤2.0 mg/Kg | Atomic Absorption | Conforms |
Cadmimum(Cd) | ≤1.0 mg/Kg | Atomic Absorption | Conforms |
Microbiological | |||
Total Plate Count | ≤1000cfu/g | USP30<61> | Conforms |
Yeast&Mold | ≤500cfu/g | USP30<61> | Conforms |
E.Coli | Negative | USP30<62> | Conforms |
Salmonella | Negative | USP30<62> | Conforms |
1. Powerful Antioxidant Support
Bulk Quercetin counteracts oxidation and impact on the stability and freshness of ingredients in formulation through antioxidant action against free radicals.
2. Anti-Inflammatory Properties
It also helps in lowering oxidative stress, and it will aid in the maintenance of balanced reactions in cosmetic and nutritional preparations. It is a beneficial natural additive.
3. Natural Pigment and Stabilizer
It is a natural pigment and stabilizer with a yellow crystalline look that improves the color and texture of food and beverage items.
4. Skin-Conditioning Agent
In cosmetic formulation, it assists in the enhancement of the product texture and offers a protective effect with a great calming effect on the skin surface, which improves the performance of the formulation.
5. Preservative Enhancer
Its antimicrobial and antioxidant properties may be used to prolong the shelf life of products naturally and do not require the use of synthetic stabilizers.
6. Plant-Based Bioactive Ingredient
It is completely made of botanical origin and thus fits the clean-label movement and is eco-friendly in creating a sustainable product.

1. Food and Beverage Industry
It is also used as a natural antioxidant and color stabilizer to prevent oxidation of ingredients, extend the shelf life of various products (beverages, snacks, and supplements), and improve the visual appearance of the products.
2. Cosmetic and Personal Care Industry
It is incorporated in skincare, haircare, and cosmetic formulations to enhance its protective and soothing effect, improve creams, serums, and lotions texture and preserve the quality and stability.
3. Pharmaceutical and Nutraceutical Industry
The functional ingredient Quercetin is employed in formulas that are aimed at antioxidant and anti-inflammatory action, as it is highly pure and of natural origin.
4. Animal Feed Industry
It is used in the feed products as a natural additive to help maintain the stability of the entire product, instead of using synthetic preservatives, and to encourage cleaner formulations.
5. Chemical and Industrial Applications
Quercetin Powder Bulk can also be used as a material preservation, formulation stabilization, and bioactive ingredient in environmentally friendly manufacturing processes, as it has a strong antioxidant/chelating use.
6. Agricultural and Environmental Fields
It is biodegradable and is made of plants, and thus can be used in making eco-friendly agricultural products, natural pest control agents, and sustainable development uses.
We have 15 years of experience in the manufacturing of natural ingredients, where we use high-grade products which is extracted using high-quality botanical materials. We have a modern purification and drying technology in our production facilities, which guarantees an outstanding purity, stable color, and performance in all our batches. We also provide complete OEM and ODM customization, such as variable concentration and packaging, along with the personal labeling of a product to satisfy the various international demands. Using rigorous quality management and global manufacturing standards, we provide dependable and scalable supply services for food, cosmetic, and industrial usage. Collaboration with us will ensure that you collaborate with a professional supplier who takes pride in innovation, traceability, and long-term partnerships that contribute to your business expansion in the global market.
Our mission is to provide excellent quality at a competitive price, supported by professional service. Every lot of Pure Quercetin Powder is manufactured under high-quality standards to ensure its purity, uniformity, and high performance. We have an effective production system and supply chain system worldwide to ensure that costs are maintained at reasonable levels without compromising on quality. Together with a responsive customer service, quick settlement of orders, and quality post-product services, we will guarantee all customers a steady value and smooth purchasing process.
Contact us at info@scigroundbio.com or fill your need using the form at the bottom of this page. To assist you in identifying the right product that addresses your need to use applications, our professional team will assist you with detailed specifications, customised solutions, and the most competitive quotation.


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