sophora japonica extract powder oem
sophora japonica extract powder oem
sophora japonica extract powder oem

Sophora Japonica Extract | Quercetin 95% HPLC | Shaanxi Huaze

Sophora Japonica Extract — ≥95% quercetin by HPLC from Sophora japonica flower buds. Yellow fine powder; 80%–98% specs available. Used in capsules and tablets for antioxidant, immune, and respiratory health. Pairs well with vitamin C and bromelain. 25 kg drums. Free sample and COA. OEM supported.

Appearance

Yellow,fine powder

Specification

Quercetin ≥95%

Test Method

HPLC

Free Sample

30g

Standard Packaging

25kg / Fiber Drum

Lead Time

1-3 working days

OEM&PrivateLabelServices

Capsules,tablets,softgel,gummies,small bags,private label

Compliance

Gluten free,no Allergen,Non-GMO,No Colors, BSE/TESE Free,Vegan

Other Specs

Quercetin ≥80% · 85% · 90% · 98%

Inquiry

Sophora japonica L. Flower Bud Extract Powder
Quercetin ≥95% | HPLC | Fine Yellow Powder

What It Is Sophora japonica extract powder

Extracted from Sophora japonica L. flower buds and standardized to ≥95% quercetin by HPLC. A fine yellow powder, supplied in 25 kg fiber drums with a standard lead time of 1–3 working days. Free 30 g samples are available for qualified buyers — test it in your formula before you commit.

Sophora japonica Flower Extract: Functions and Potential Benefits

1. Antioxidant Properties
Quercetin is known for its antioxidant activity. It has been studied for its ability to help protect cells from oxidative stress and support the body’s natural antioxidant defenses.​
2. Inflammation Support
Quercetin has been widely studied for its role in inflammation-related pathways. This makes Sophora japonica Flower Extract an ingredient of interest for wellness-focused nutritional formulations.​
3. Immune Health
Research has explored the relationship between Quercetin and immune function. As a natural flavonoid, it is commonly used in dietary supplement formulas designed to support overall immune health.​
4. Cardiovascular Health
Quercetin has been studied for its potential role in cardiovascular health, including vascular function and oxidative stress. It is therefore used in a range of nutritional and wellness formulations.​
5. Seasonal Wellness
Research has also examined Quercetin’s interaction with mast cells and histamine-related pathways. This has made Quercetin 95% HPLC an ingredient of interest for seasonal wellness formulations.​
6. Metabolic and Brain Health
Quercetin continues to be studied for its potential role in metabolic health, cognitive function, and healthy aging. These research areas support its continued use in nutritional and functional formulations.

Quercetin Applications

Dietary Supplements — Suitable for standalone Quercetin capsules and combination formulas with vitamin C, bromelain, and other functional ingredients.​
OEM Capsule Programs — Supports private-label capsule products with flexible potency, bottle count, and labeling options.​
Functional Foods & Beverages — Suitable for fortified beverages, powdered drink sticks, wellness shots, and other functional formulations.​
B2B Bulk Supply — Sophora japonica Flower Extract standardized to 95% Quercetin is available for dietary supplement manufacturers, nutraceutical companies, and ingredient distributors. Bulk supply, quality documentation, and customized requirements are supported.

Why Source from Huaze Biotech

Commercial-scale extraction. In-house HPLC release testing on every batch. ISO 9001, Kosher, and Halal certified. Whether you are formulating with bulk powder or need finished OEM capsules under your brand, we deliver — on spec, on time, without the back-and-forth.

Request your free 30 g sample today — and see how a ≥95% quercetin extract performs in your formula.Please contact us at sales@zeingredients.com

Appearance

Yellow,fine powder

Specification

Quercetin ≥95%

Test Method

HPLC

Free Sample

30g

Standard Packaging

25kg / Fiber Drum

Lead Time

1-3 working days

OEM&PrivateLabelServices

Capsules,tablets,softgel,gummies,small bags,private label

Compliance

Gluten free,no Allergen,Non-GMO,No Colors, BSE/TESE Free,Vegan

Other Specs

Quercetin ≥80% · 85% · 90% · 98%

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Company Overview

Shaanxi Huaze Biotechnology Co., Ltd. holds both a Food Production License and a Health Food Production License — making us a dual-licensed, registered manufacturer of natural food ingredients and plant-derived functional compounds, covering R&D through finished product manufacturing.
Our 25,000 m² registered facility in the Yangling Agricultural Demonstration Zone houses dedicated extraction and formulation workshops under one comprehensive food safety and quality management system.
Three competitive advantages:
• Scale — high-volume production improves batch consistency while lowering unit costs.
• Proximity — cooperative raw material bases in China’s key growing regions provide a direct cost edge.
• Certifications — ISO 9001, Kosher, and Halal, with products routinely meeting EU, US, and Chinese pharmacopoeia standards.
For buyers seeking a reliable, large-scale ingredient partner, Huaze delivers — consistently.
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Shaanxi Huaze Biotechnology Co., Ltd. turns raw botanicals into trusted, high-quality ingredients for the global food, supplement, and cosmetic industries.

With nearly two decades of technical expertise, our Yangling facility covers the full value chain — R&D, extraction, formulation, and finished-product manufacturing — all under one quality system. Our portfolio spans four categories:

  • Natural food ingredients — functional actives, natural pigments, fruit juice powders, natural sweeteners
  • Functional formulations — custom premixes and ready-to-blend powder systems
  • Dietary supplement ingredients — standardized botanical extracts
  • Branded nutraceuticals — finished products under our own label

Beyond the catalog, we offer custom specifications, proprietary formulations, and direct technical support. Whether you need a standard extract or a tailored blend, we engineer solutions — not just supply ingredients.

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We are a full-service manufacturer of natural active ingredients, operating a 25,000 m² facility in the Yangling Agricultural Demonstration Zone, China. Our end-to-end quality system governs every phase: raw material acceptance, in-process control, and finished product release. An independent QA department, equipped with HPLC, GC, AAS, and UV-Vis instrumentation, verifies every critical quality attribute before any batch leaves our warehouse.

Our certifications — ISO 9001, Kosher, Halal, and Chinese food production licensing — reflect a quality infrastructure built for global markets.

Behind the facility is a team that brings 20 years of R&D experience and active partnerships with leading Chinese universities. We see every customer relationship as a partnership: your specifications, our expertise, delivered with integrity — every time.

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Shaanxi Huaze Biotechnology Co., Ltd. is a vertically integrated manufacturer of plant-derived functional ingredients for the food, dietary supplement, and cosmetic industries worldwide.

From one site in the Yangling Agricultural Demonstration Zone, we handle everything: R&D, raw material sourcing, botanical extraction, formulation, and finished product manufacturing. No outsourcing. No handoffs. Just one quality system from start to finish.

  1. Breadth — Our portfolio covers natural pigments, sweeteners, standardized extracts, custom premixes, and branded nutraceuticals, sourced from both domestic and imported raw materials.
  2. Value — Cooperative raw material bases near China’s major growing regions give us — and our customers — a structural cost advantage.
  3. Reliability — ISO 9001 certified quality management, Kosher and Halal certifications, and a track record of delivering to EU, US, and Chinese pharmacopoeia specifications.
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Certificates

Factory Show
Macroporous Resin Adsorption Column for Plant Extract Purification
Adsorption Column
Multi-functional Extraction Tank – Production Equipment
Extraction Adsorption Concentration
Finished Goods Warehouse-Huaze Biotech
Finished Goods Warehouse

FAQ

What botanical extracts do you offer?

Our portfolio spans standardized botanical extracts and naturally derived active compounds at every scale. That includes branded ingredients with proven bioavailability, and tailored OEM/ODM solutions — think custom premixes, stick-pack blends, and ready-to-mix solid beverages.

We’re a manufacturer. Our extraction and formulation facility occupies 4 hectares (60 Mu) in Shaanxi’s Yangling Agricultural Demonstration Zone, operating under ISO 9001 quality management with Kosher and Halal certification. Every batch is produced, tested, and released on-site — we don’t outsource production or skip release testing.We prioritize locally sourced raw materials and partner exclusively with GACP-compliant growers. This gives us full traceability from field to finished product and supports biodiversity conservation. Every batch is identity-verified, purity-tested, and checked for batch-to-batch consistency before release.

Yes. We know that in-house validation is a critical step in your R&D process. We typically supply 30 g of product at no charge for evaluation purposes. While the sample itself is free, we ask that you cover the international shipping cost — which is fully creditable against your first bulk purchase order.

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