Soy Isoflavones 90%
Active Ingredient: Soy Isoflavones
Purity Specification: 90%
Country of Origin: China
Testing Method: High-Performance Liquid Chromatography (HPLC)
Appearance: White to off-white powder
Solubility: Slightly soluble in water, soluble in ethanol and other organic solvents
Related Certifications: ISO9001, GMP, FDA, Kosher, Halal
Trade Terms: EXW, FOB, CFR, CIF, DAP, DDP
Payment Method: Preferably T/T (Telegraphic Transfer)
Transportation Methods: Air Freight, Sea Freight, Railway Transportation
Services Provided: OEM (Original Equipment Manufacturing) / ODM (Original Design Manufacturing)
Delivery Status: Sufficient stock, safe and fast delivery
Packaging Specifications: 10 kg, 20 kg
Minimum Order Quantity (MOQ): 1 kg
- Product Description
Soy Isoflavones 90% Extract Powder – High-Purity Phytoestrogen Ingredient for Premium Supplement Formulations
Soy Isoflavones 90% is a highly concentrated plant active ingredient which is produced from soybeans by state of the art plant extraction techniques. Shaanxi Herbcosher Phychemistry Co., Ltd. 20+ years of phytochemical experience. 90% purity validated by HPLC test. White to off-white powder. It is ISO9001, GMP, FDA, Kosher and Halal certified and complies with US and EU regulations. It's a trusted choice for B2B buyers in the dietary supplement and functional food markets, offering a low MOQ of 1kg, flexible OEM/ODM services, and ample inventory for fast global shipment.

What Is Soy Isoflavones 90%?
Soy Isoflavones are naturally occurring polyphenolic chemicals of the isoflavone class of phytoestrogens. They are found mainly in soybeans and soybean germs and contain the important active components daidzin, daidzein, genistin and genistein.
The 90% criterion is for total isoflavones on a dry basis, confirmed by HPLC. This high purity grade provides a very concentrated active ingredient profile in comparison to normal 40% – 60% extracts, making it especially well suited to premium formulation applications.
This extract is rich in genistein, one of the main isoflavones, with the highest binding affinity to Oestrogen Receptor Beta (ERβ), supporting its phytoestrogenic functioning. This selective oestrogen receptor modulator (SERM) action offers tissue-specific benefits without the undesirable side effects of synthetic hormone replacement therapy.
Product Characteristics & Physical Properties
The extract is obtained as a fine white to off-white powder with subtle characteristic soy odour. Slightly soluble in water, soluble in alcohol and other organic solvents.
Its high purity profile makes it appropriate for encapsulating, tableting and powder blend applications. Clear-beverage formats may have to use microencapsulation or cyclodextrin inclusion complex technologies to overcome solubility issues and hide the natural bitterness of high concentration phenolic chemicals.
The powder shows good thermal stability under conventional processing conditions and can thus be used in a range of food and supplement manufacturing settings.
Technical Specifications
| Parameter | Details |
|---|---|
| Active Ingredient | Soy Isoflavones |
| Purity Specification | 90% |
| Testing Method | HPLC (High-Performance Liquid Chromatography) |
| Appearance | White to off-white powder |
| Solubility | Slightly soluble in water; soluble in ethanol and organic solvents |
| Production Process | Plant Extraction Method |
| Country of Origin | China |
| Certifications | ISO9001, GMP, FDA, Kosher, Halal |
| MOQ | 1 kg |
| Packaging | 10 kg, 20 kg |
| Trade Terms | EXW, FOB, CFR, CIF, DAP, DDP |
| Payment | T/T (Telegraphic Transfer) preferred |
| Transportation | Air Freight, Sea Freight, Railway |
| Services | OEM / ODM |
| Delivery | Sufficient stock; fast and safe delivery |
Quality Control & Testing Standards
Quality assurance is rigorous for every production batch. HPLC purity confirmation provides reliable quantitation of total isoflavones and the important aglycone/glucoside ratio.
The heavy metal content is tested to rigorous safety criteria with Lead and Arsenic levels maintained below 0.5ppm. Total plate count is less than 1,000 cfu/g Yeast and mould is less than 100 cfu/g E. coli and salmonella are absent. Microbiological Safety Testing
Authenticity tested for 100% Glycine max botanical origin and protection against adulteration with synthetic isoflavone analogues. Third-party testing results are offered to meet brand compliance needs and regulatory submissions.
Application Areas
Women's Health & Menopause Care
Soy Isoflavones 90% is one of the most used plant-derived ingredients in women's health supplement formulations. Its phytoestrogenic qualities can be a plus to products designed for menopause wellness and hormonal balance at different life stages. Often coupled with Calcium, Vitamin D3 or Black Cohosh in tablet and capsule form.
Functional Bone Health Products
Plant-based nutritional compounds, such as genistein, are included into formulations for bone health. The 90% concentration enables effective dosing at reduced inclusion rates to promote the creation of lean, high potency products.
Nutrition Products Antioxidants
Isoflavone molecules have quantifiable antioxidant action. This makes them a good candidate for formulations that are aimed at oxidative stress control and general well-being.
Cosmeceutical Uses
The extract's genistein stimulates collagen production and blocks matrix metalloproteinases (MMPs). In topical anti-aging serums and skincare formulations, liposomal delivery systems are frequently employed to increase skin penetration.
Functional Foods & Drinks
The extract is employed in dairy replacements, meal replacement powders and fortified food matrices. Microencapsulation is appropriate for applications with thermal processing or clear-beverage formats.
Formulation & Usage Considerations
The 90% standard lowers the amount of raw material per serving and may be beneficial in formulations when minimising excipient load or capsule size is desired. This is especially crucial for high-potency supplement lines where label transparency and ingredient density are selling advantages.
Formulators should also examine the possibility for interactions with mineral-based additives such as calcium salts that could alter the stability of organic compounds throughout shelf life. The product should be kept in airtight, double lined polyethylene packaging and maintained at below 25°C in a dry place, sheltered from light. The normal shelf life is 24 to 36 months.
OEM/ODM & Supply Advantages
Herbcosher can provide comprehensive OEM and ODM customisation for raw material sourcing and finished product creation. Powder mixtures, capsules, tablets, liposome formats and microcapsule delivery systems are all dosage forms.

The company has a warehouse of 4,000–5,000 m² with sufficient stock of regular products. The standard bulk orders are completed within 15 business days with expedited alternatives available. 30+ countries. Safe, on-time delivery. Global logistics relationships.

Packaging
| Specification | Details |
|---|---|
| Standard Pack | 10 kg / 20 kg per bag |
| Inner Packaging | Double-lined polyethylene bag |
| Custom Packaging | Available upon request |
FAQ
Q: What plant does this stuff come from?
A: It is derived from soybean germs or entire soybean raw material by employing plant extraction procedure. Botanical Origin Verified: 100% Glycine max .
Q: How does the 90% specification differ from standard 40%–60% grades?
A: The 90% grade has a much larger concentration of active isoflavones per gram. This means lower inclusion rates per serving which is desired for premium low dose high potency supplement formulations.
Q: What dosage forms can this chemical be used in?
A: Suitable for Capsules, Tablets, Powders, Granules, Softgels and mixed nutritional blends. For clear beverages, use a water-soluble grade utilising nano-emulsion or cyclodextrin technology.
Q: What is the certificate of this product?
A: The product is certified under ISO9001, GMP, FDA, Kosher, and Halal, supporting regulatory compliance across North American, European, and Asian markets.
Q: What are the appropriate conditions for storage?
A: Store in sealed double-lined polyethylene bags in fibre drums in a cool, dry environment, protected from direct sunlight and at temperatures below 25°C. Typical shelf life is 24 to 36 months.
Q: Do you offer OEM or ODM service for this product?
A: Yes . Herbcosher offers complete OEM and ODM services, including custom formulation, dosage form development and package customisation, with delivery usually within 15 working days.
Contact Us
Send your inquiry about Soy Isoflavones 90% to info@herbcosher.com — our technical team will respond promptly.




