High Purity Quercetin Powder 95% 98%

Product Overview

Quercetin is a naturally occurring flavonoid widely found in fruits and vegetables such as onions, apples, and berries. As a high-value component in Plant Extracts and Herbal Extracts, Quercetin is recognized for its strong antioxidant properties and its role in supporting immune and inflammatory response balance.

With growing global demand for Antioxidants and functional Nutritional Ingredients, Quercetin has become a key ingredient in dietary supplements, Sports Nutrition Ingredients, and functional food formulations. It is also increasingly used in Cosmetic Ingredients, particularly in Anti-aging Ingredients and Skin Repair Ingredients applications.

Content Note: Prepared by our technical team based on current scientific literature. Health claims comply with FDA/EFSA guidelines. Last reviewed: March 2026

According to a study in Journal of Nutritional Biochemistry (2016), quercetin demonstrated significant antioxidant activity and may support cellular protection against oxidative stress.

Research published in Nutrients (2021) suggests that quercetin may contribute to immune modulation and inflammatory response balance.

Key Ingredients & Specifications

We offer high-purity Quercetin suitable for a wide range of applications in Supplement Contract Manufacturing and functional product development.

Differentiation Content

Purity vs Application Scenario

Quercetin vs Rutin Comparison

Formulation Combination Recommendations

• Quercetin 500 mg + Vitamin C 500 mg — antioxidant synergy
• Quercetin 250 mg + Bromelain 100 mg — enhanced absorption formulations
• Quercetin 500 mg + Zinc 15 mg — immune support blends

Applications & Benefits

Quercetin is widely utilized across multiple industries due to its functional properties:

• Dietary Supplements: Capsules, tablets, and powders
• Sports Nutrition Ingredients: Recovery and oxidative stress support
• Functional Foods: Fortified beverages and nutrition bars
• Cosmetic Ingredients: Anti-aging, Anti-acne Ingredients, and skin protection
• Nutritional Fortifiers: Used in Superfood Powders and blends

Studies suggest Quercetin may support antioxidant defense, immune balance, and cellular health, making it a valuable component in advanced Vitamins and nutraceutical formulations.

Why Choose Us – Quality, Certifications & OEM Capability

We deliver consistent quality and scalable supply solutions for global brands seeking premium Plant Extracts.

• Certifications: ISO, HACCP, GMP, Halal, Kosher
• Dosage Forms: Capsules, tablets, powders, gummies
• MOQ: Flexible for bulk and OEM projects
• Customization: Particle size, purity, and formulation
• Packaging: Bulk or private label options
• Lead Time: 2–4 weeks

Our integrated Supplement Contract Manufacturing capabilities ensure efficient product development from raw material sourcing to finished product delivery.

Frequently Asked Questions

What is the typical purity of your Quercetin?

We offer Quercetin with purity levels of 95% and 98%, depending on application needs.

Is Quercetin water soluble?

Standard Quercetin has low water solubility, but we offer modified or formulated versions to improve dispersion.

Can you provide Quercetin for beverage applications?

Yes, we offer customized formulations suitable for functional drinks.

What is your MOQ?

MOQ varies depending on specification and customization requirements.

Do you support OEM and private label services?

 

Shaanxi Kaishi Biotechnology Co. LTD,., was established in june 2022. It is a professional animal and plant extracts modern and advanced enterprise object, pharmaceutical intermediates, and natural active ingredients. In the development, production and marketing, is very powerful. Headquartered in Henan. It has a research and development center and the Analysis and Testing Center, with strong comprehensive national strength. The company has 200 acres of experimental field of plant cultivation, extraction, distillation, rectification, chromatography, three specialized production lines, as well as 10,000 square meters of GMP standard workshop..