Soy Isoflavone Powder
Latin Source: Glycine max L. Merrill
Other Names: phytoestrogen
Part Used: Seeds
Appearance: Light yellow powder
Specification: 40%,60%,80%
MOQ: 1kg
Application: Medicine and health products
Certificate: cGMP,ISO22000, ISO9001, HACCP, FSSC22000, HALAL, KOSHER
Soy Isoflavone Extract Powder Manufacturer & Bulk Supplier
Soy Isoflavone Powder is a natural phytoestrogen extracted from non-GMO soybeans (Glycine max). Standardized with high levels of genistein, daidzein, and glycitein, it is widely used in dietary supplements designed for women's health, menopause support, bone health, and cardiovascular wellness.
At Jiuyuan Bio, we supply high-purity soy isoflavone extract powder (40%–90% HPLC) for nutraceutical brands, supplement manufacturers, and functional food companies worldwide.
Our soy isoflavone ingredients are manufactured under strict quality standards to ensure consistent potency, purity, and stability for large-scale production.
Available Specifications
Soy Isoflavone 40%
Soy Isoflavone 60%
Soy Isoflavone 80%
Soy Isoflavone 90%
Test Method: HPLC
Ingredients Description
Ingredient Introduction
Soy isoflavones are flavonoid compounds, secondary metabolites produced during soybean growth, and biologically active substances. Because they are extracted from plants and have a similar structure to estrogen, soy isoflavones are also known as phytoestrogens. The estrogenic effects of soy isoflavones influence hormone secretion, metabolic and biological activity, protein synthesis, and growth factor activity, making them a natural chemopreventive agent against cancer.
Plant Source
Soy isoflavones mainly come from two sources:
- One source is from defatted soybean meal, a byproduct of soybean oil production.
- The other source is from soybean germ, a byproduct of soybean protein production.
Origin of Raw Materials
Soybean (Glycine max (L.) Merr.) is an annual herbaceous plant belonging to the legume family, native to China. It is cultivated throughout China and widely grown worldwide. Soybeans are one of China's important food crops, with a cultivation history of five thousand years. Historically known as "shu," the main production area is in Northeast China.

Chemical Composition
Daidzin, Daidzein, Genistin, Genistein, Glycitin, Glycitein.
Key Features of Soy Isoflavone Powder
- Standardized total isoflavone content
- Balanced profile of glycosides and aglycones
- Suitable for capsules, tablets, sachets, and blends
- Excellent compatibility with multi-ingredient formulations
- Stable quality for long-term production
Soy Isoflavone Powder Specifications
| Item | Specification |
|---|---|
| Product Name | Soy Isoflavone Powder |
| Botanical Source | Glycine max (Soybean) |
| Appearance | Light yellow to brown powder |
| Assay | 40% / 60% / 80% / 90% Isoflavones |
| Test Method | HPLC |
| Active Ingredients | Genistein, Daidzein, Glycitein |
| Particle Size | 80 Mesh |
| Loss on Drying | ≤5% |
| Ash | ≤5% |
Applications of Soy Isoflavone Powder
Soy isoflavone extract powder is widely used across multiple industries.
Dietary Supplements
Menopause support capsules
Women's hormone balance formulas
Bone health supplements
Anti-aging formulations
Functional Foods & Beverages
Nutrition bars
Functional dairy alternatives
Soy beverages
Health drinks
Nutricosmetics
Skin health supplements
Anti-aging beauty formulas
Manufacturing Process
Our soy isoflavone extract powder is produced using a controlled extraction process to ensure high purity and consistent quality.
- Non-GMO soybean selection
- Ethanol extraction
- Concentration and purification
- Spray drying
- HPLC standardization
Each production batch undergoes strict quality testing before shipment.

Quality Control & Compliance
Our Soy Isoflavone Powder is manufactured under strict quality management systems:
- ISO 9001
- HACCP / Food Safety Control
- Non-GMO raw materials
- Heavy metals & microbiological testing
- Batch-to-batch consistency
Supporting documents (COA, MSDS, TDS) are provided upon request.
Please download and view the company's relevant qualification certificates:

Shaanxi Jiuyuan Biotechnology Co., Ltd., established in 2012, is a high-tech enterprise dedicated to researching, producing, and supplying premium botanical extracts. Guided by our mission, "Harnessing Nature's Power for Human Health," we provide high-quality raw materials and technical services to global health, food, cosmetic, and pharmaceutical companies.

01
Quality Control
Mature procedures for raw material acceptance and finished product testing;
Well-equipped testing instruments; implementation of a quality traceability system; and technical cooperation with research institutions.
02
Production and Supply
We have long-term, stable raw material planting cooperation bases; we own two production bases, one of which is the Zhouzhi production base, a cGMP-certified facility with complete production equipment and mature production processes.
03
Technology Research and Development
Possesses strong R&D capabilities; university-industry collaboration;
Specialized applied technology research, featuring full-component
extraction technology; emphasis on product upgrades.
04
product portfolio includes
Standard plant extract powders
Nutraceutical ingredients
Food ingredients
Fruit and vegetable powders
Mushroom extract powders
Organic plant-based products
Nutritional formula blend powders

Bulk Supply Information
We provide flexible bulk supply options for supplement manufacturers and ingredient distributors.
MOQ: 1 kg
Packaging: 1kg / 5kg / 25kg fiber drum
Shelf Life: 24 months
Storage: Store in a cool, dry place away from direct sunlight.
FAQ – Soy Isoflavone Powder
Q1: What is the difference between Soy Isoflavone Powder and Extract Powder?
Soy Isoflavone Powder focuses on standardized isoflavone content and composition, while extract powder emphasizes extraction processes and botanical origin.
Q2: Can the isoflavone profile be customized?
Yes. Different glycoside and aglycone ratios are available based on customer requirements.
Q3: Is this product suitable for women's health formulations?
Yes. It is widely used in menopause support and hormone balance products.
Hot Tags: soy isoflavone powder, China soy isoflavone powder manufacturers, suppliers, factory
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