Soy Isoflavone for Sale
Sunjoy provides premium soy isoflavone for your nutrition formulations.
- Active ingredient: 5%, 10%, 40%, 90% soy isoflavone
- Related names: soybean isoflavone, soy phytoestrogens
- Appearance: light yellow powder
- Packaging: 1 kg aluminum foil bags, 5 kg aluminum foil bags, 10 kg aluminum foil bags, 25 kg fiber drums with inner double-liner plastic bags
What Is Soy Isoflavone?
Soy isoflavone is a phytoestrogen extracted from soybean germ. The primary active components are genistein, daidzein, and glycitein. Due to its structural similarity to human estrogen, soy isoflavone is commonly used in nutritional formulations for women’s health, bone health, and healthy aging support.
Applications of Sunjoy Soy Isoflavone
Concerning female hormonal balance and menstrual cycle changes, Sunjoy soy isoflavone can be used in women’s health management products. It can help alleviate symptoms caused by declining estrogen levels and relieve menopausal symptoms.
Sunjoy soy isoflavone is commonly combined with calcium, vitamin D, and other ingredients to maintain bone density and long-term bone health. You can use soy isoflavones in nutritional supplements for bone strength.
Sunjoy soy isoflavone is helpful for lipid metabolism and vascular health and is widely used in middle-aged and senior nutrition products. You can use it in cardiovascular health maintenance and middle-aged general health supplements.
Soy isoflavone can neutralize free radicals and help support healthy cellular aging. Combined with multivitamins and plant extracts, Sunjoy soy isoflavone can be used in the development of antioxidant and health-maintenance products.
- Sunjoy Soy Isoflavone Certificate of Analysis
| Product name | Soy isoflavone 40% (by HPLC) | |
| Items | Specification | |
| Total isoflavones | ≥40.0%, customizable for your requirements | |
| Daidzin | ||
| Glycitin | ||
| Genistin | ||
| Daidzein | ||
| Glycitein | ||
| Genistein | ||
| Physical and chemical index | Appearance | Light yellow powder |
| Odor | Characteristics | |
| Size | Pass 80 Mesh (100%) | |
| Moisture | ≤5% | |
| Ash | ≤5% | |
| Microbiologicals and heavy metals | Total plate count | ≤1000 cfu/g |
| Mould and yeast | ≤100 cfu/g | |
| Salmonella | Negative | |
| Coliforms | Negative | |
| Heavy metals | ≤10 ppm | |
| Pb | ≤1 ppm | |
| As | ≤1 ppm | |
| Hg | ≤0.1 ppm | |
| Storage | Keep in cool and dry places | |
| Shelf life | 2 years under proper storage conditions | |
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Related Products
Your Professional Soy Isoflavone Supplier in China
- 9 years of experience in manufacturing soy isoflavones
- Compliant with EU, US, and CN market access standards
- Continuous bulk supplies for long-term orders
- Custom services available in manufacturing and packaging
Current research and applications suggest that soy isoflavones may affect thyroid function only at very high dosages or under specific laboratory conditions. In common dietary supplements, there is no consistent evidence that soy isoflavones trigger thyroid dysfunction.
People receiving treatment for thyroid dysfunction or those with chronic iodine deficiency should consult doctors before taking soy isoflavones.
Digestive Reactions
Some people may experience mild digestive discomfort, like bloating and increased flatulence. These reactions are short-term and commonly related to individual differences in ingredient tolerance.
Hormone-Related Reactions
Soy isoflavone is a phytoestrogen, so some people may experience minor hormone-related changes when they take it at high doses or for extended periods. However, these reactions are uncommon at doses typically used for nutritional supplements.
Thyroid-Related Considerations
As mentioned above, people with thyroid dysfunction or insufficient iodine intake should be cautious when taking soy isoflavones. It is recommended to value their body’s well-being and consult a doctor before using products containing soy isoflavone.
Allergic Reactions
As soy isoflavone is extracted from soybeans, some people who are allergic to soybeans may experience allergic reactions like skin discomfort. However, this situation is very rare.
| Items | Red clover isoflavone | Soy isoflavone |
| Raw material | Red clover extracts | Soybean extracts |
| Active components | Biochanin A, formononetin, and small amounts of genistein and daidzein | Genistein, daidzein, and glycitein |
| Applications | Menopause support, women’s hormonal balance, and mature women’s health products | Women’s health, menopause support, bone health, cardiovascular health, antioxidant support, and healthy aging formulations |
| Common ingredient combinations | Women’s health botanicals such as black cohosh and chasteberry | Calcium, vitamin D, collagen, coenzyme Q10, and other healthy aging ingredients |
Red clover isoflavones are more positioned for women’s hormonal health, while soy isoflavones feature a more comprehensive application range. You can choose suitable ingredients for your formulation according to your requirements.
If your products are more centered on menopause and hormone supplements, red clover isoflavone is a good choice. If your products aim for a broader range of applications, soy isoflavones have more advantages.
Soybean Inspection
Sunjoy uses premium soybean germ as the original material for soy isoflavones. When the germ enters, we first conduct incoming inspections to confirm that it meets our manufacturing requirements. Only qualified germ can proceed to subsequent manufacturing processes.
Ethanol Extraction
We use aqueous ethanol as the solvent to extract soy isoflavones from the germ. After extraction, we get the extract solution containing our target components. Ethanol recovery is also conducted to reduce residues and release the load of concentration and drying processes.
Concentration
We use physical technologies like pressure-reduced evaporation or vacuum concentration to remove the solvent and increase the assay ratio. Ethanol recovery is conducted to achieve higher stability and purity in the final soy isoflavone products.
Purification
Chromatography purification can isolate and concentrate the soy isoflavones. Impurities are removed at this stage. We conduct a secondary concentration process. Purification and concentration are important stages of assay and quality control. After these processes, the semi-product is ready for subsequent drying.
Drying and Powder Processing
Sunjoy adopts professional technologies in its product drying, such as spray drying and vacuum drying. Then the soy isoflavones are in a relatively stable powder form. After drying, we conduct pulverization, screening, and mixing to control consistent particle size and uniformity.
Testing and Packaging
In addition to soybean raw material inspection, we also conduct semi-finished and finished product testing. Multiple inspections closely monitor the manufacturing processes, ensuring quality-assured final soy isoflavone.
Our standard packaging is 25 kg fiber drums with double-liner plastic liners, providing full protection against product degradation. In addition to basic packaging, we also provide custom services tailored to your requirements.
Keep Cool and Dry
Soy isoflavones should be kept in cool, dry places. If the humidity is high, soy isoflavone may absorb moisture and clump, affecting the powder flowability and effectiveness.
Protect from Light and Air
If soy isoflavone is exposed to light and air for too long, the stability of active ingredients can be affected. Keep it sealed, and you can reduce the risk of oxidation and maintain the active ingredient level. Original packaging or moisture-proof, well-sealed containers are recommended.
Avoid High Temperature
High-temperature environments may affect the physical state of soy isoflavones and the stability of active ingredients. Recommended storage temperature ranges from 15°C to 25°C.
Quality Documents
We can provide quality documents to show our products are compliant with food or pharmaceutical application requirements. Our testing in manufacturing processes also follows HPLC standards.
Compliance Documents
We can provide REACH compliance documents to prove that our products can smoothly enter your country. Documents like COAs, specification sheets, and inspections from a third party are all available.
Shipping and Logistics Documents
Other documents may be required in global logistics, and we are fully engaged to help you with document preparation. Documents like certificates of origin and commercial invoices are available.
