Soy Isoflavones 10%
Active Ingredient: Soy Isoflavones
Purity Specification: 10%
Country of Origin: China
Testing Method: High-Performance Liquid Chromatography (HPLC)
Appearance: Light yellow to yellow 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 10% Extract Powder — Natural Phytoestrogen Ingredient for Functional Health Formulations
Soy Isoflavones 10% is a standardized botanical extract derived from non-GMO soybeans (Glycine max) using modern plant extraction technology. Produced in China and verified by HPLC, this light yellow to yellow powder delivers a consistent 10% active isoflavone content — including daidzin, genistin, daidzein, and genistein. Certified under ISO9001, GMP, FDA, Kosher, and Halal standards, it supports global market compliance. With an MOQ of just 1 kg, flexible OEM/ODM services, and sufficient stock for fast delivery, Herbcosher provides a reliable, cost-effective supply solution for B2B buyers worldwide.

What Is Soy Isoflavones Extract?
Soy Isoflavones are natural flavonoid compounds classified as phytoestrogens — plant-derived substances that interact with estrogen receptors in the human body. They are primarily found in the hypocotyl and germ of soybean seeds.
The four main bioactive compounds are daidzin, genistin, daidzein, and genistein. These exist in two forms: glycosides (naturally bound to sugar molecules) and aglycones (pre-hydrolyzed during processing). Aglycone forms generally offer faster and higher bioavailability, making them preferred for certain supplement applications.
The 10% specification means the extract contains 10% total isoflavones by weight — a widely used concentration in the nutraceutical and functional food industries.
Product Specifications
| Parameter | Details |
|---|---|
| Active Ingredient | Soy Isoflavones |
| Purity Specification | 10% |
| Appearance | Light yellow to yellow powder |
| Production Process | Plant Extraction Method |
| Testing Method | HPLC (High-Performance Liquid Chromatography) |
| Solubility | Slightly soluble in water; soluble in ethanol and organic solvents |
| Country of Origin | China |
| Certifications | ISO9001, GMP, FDA, Kosher, Halal |
| MOQ | 1 kg |
| Packaging | 10 kg / 20 kg per unit |
| Trade Terms | EXW, FOB, CFR, CIF, DAP, DDP |
| Payment Method | T/T (Telegraphic Transfer) preferred |
| Shipping Methods | Air Freight, Sea Freight, Railway |
| OEM / ODM | Supported |
| Delivery | Sufficient stock; fast and safe delivery |
Key Product Advantages
The 10% criteria is a pragmatic compromise between the amount of active ingredient and cost of the formulation. It is one of the most accessible and scalable isoflavone grades for high volume functional food and supplement manufacture
This component is derived from soybeans using contemporary methods and is in line with the global trend toward natural health treatments derived from plants. The active content is standardised to provide batch to batch uniformity which is crucial for B2B formulators.
The extract is soluble in ethanol and other organic solvents, therefore it is a good match for capsule, tablet and powder formats. For beverage applications a water soluble grade either by nano-emulsion or cyclodextrin inclusion is recommended for clarity.
Applications Across Key Industries
Women's Health Supplements
This is the most mature B2B application. It is often included in menopausal health formulas in a capsule or tablet form. It is often used with Calcium, Vitamin D3 or Black Cohosh in combination to make complete women's nutritional supplements. It is a plant-based functional alternative used in supplement formulation for hormone balance due to its phytoestrogen characteristics.
Functional Foods & Beverages
The extract is good in dairy replacements, meal replacement powders and fortified food products. It shows heat resilience up to 180°C for short time periods – ideal for most common pasteurisation methods. It can also help disguise natural bitterness associated with phenolic-rich plant extracts when administered at greater dosages.
Bone Health Formulas
Isoflavone chemicals have been widely used in the creation of bone nourishment products. They are substances providing nutritional support from plants in formulas for bone density maintenance and are commonly positioned next to mineral-based additives.
Topical Products and Cosmeceuticals
The genistein component is known for its role in supporting collagen formation and as an inhibitor of matrix metalloproteinases (MMPs). Liposomal delivery technologies are used by formulators of anti-aging serums to enhance skin penetration without disrupting the stability of emulsion bases.
Products for Antioxidant Support
Isoflavone molecules have been reported to possess antioxidant action. This makes them a useful ingredient option for general wellness and cellular health formulations.
Quality Control Standards
Every batch of Soy Isoflavones 10% undergoes rigorous testing before release. HPLC is used to verify the precise isoflavone ratio and confirm the 10% potency specification.
Heavy metal screening is conducted using ICP-MS, with strict limits applied for lead and arsenic. Pesticide residue analysis follows USP standards, using GC-MS multi-residue methods. Microbiological safety is verified against global benchmarks, including total plate count, yeast and mold limits, and absence of E. coli and Salmonella.
The standard shelf life is 24 to 36 months when stored correctly — in airtight, double-lined polyethylene bags, kept below 25°C, away from moisture and direct sunlight.
OEM/ODM and Supply Capabilities
Herbcosher supports both raw material supply and finished product customization. Available dosage forms include powder, liposome, and microcapsule formats. Custom packaging, labeling, and formulation development are all supported under OEM and ODM arrangements.

With a warehouse spanning 4,000–5,000 m² and sufficient inventory of standard products, bulk orders can be fulfilled within 15 working days. Expedited customization is also available for time-sensitive projects.
Third-party testing reports can be provided for compliance verification in regulated markets, including the US and EU.

Packaging
- 10 kg per unit — suitable for trial orders and small-batch production
- 20 kg per unit — optimized for large-scale manufacturing needs
Both packaging options are designed to maintain product integrity during long-distance international shipping.
FAQ
Q: Is the product considered a botanical extract?
A: Yeah. It is a standardised botanical extract generated from soybean source materials by plant extraction procedures.
Q: What are isoflavones glycoside and aglycone?
A: Glycosides are the bound form in nature which needs fermentation in the gut to absorb. Pre-hydrolyzed aglycones for faster, higher bioavailability – good for the consumers with compromised digestive health.
Q: Can this extract be used in aqueous drinks?
A: Standard grades are slightly soluble in water, may produce turbidity. For transparent liquid applications, a water-soluble grade (nano-emulsion or cyclodextrin technology) is advised.
Q: What formulations is the 10% specification most suited to?
A: It is suitable for women's health supplements, functional foods, bone health tablets, antioxidant formulations and combination nutritional goods.
Q: How do I store the product?
A: Store in cool (below 25°C), dry, away from direct sunlight, in airtight, double-lined polyethylene containers. Shelf life is 24-36 months when stored properly.
Q: What is the minimum order?
A: MOQ is 1 kg friendly for product development, pilot testing and small batch production before scale up.
Contact Us
Reach our technical and sales team at info@herbcosher.com to request samples, specifications, or a custom quote for Soy Isoflavones 10%.




