S-Equol Manufacturer | Bulk 99% Chiral Pure Powder | Wholesale Supply
Bio-fermentation Engineering • Enantiomerically Pure • GMP Certified
Leading Global Manufacturing of High-Stability S-Equol (4′,7-Isoflavandiol) Solutions.
As the life-science division of Zhonghong Group, Exbiol® leverages 29 years of phytochemical engineering to provide premium S-Equol bulk supply. We resolve the “Chiral Adulteration” challenge by offering ≥99% pure S-enantiomer via advanced bio-fermentation and chromatographic separation. Our GMP-certified facility ensures 100% molecular consistency and audit-ready documentation (DMF/TDS) for global pharmaceutical and nutraceutical leaders seeking the most bio-active metabolite of soy isoflavones.
1. What is S-Equol?
S-Equol (4′,7-Isoflavandiol) is the active metabolite produced in the human gut through the fermentation of daidzein, a soy isoflavone. Only about 30-50% of the population possess the specific bacterial flora to produce this compound naturally. Exbiol® provides a bio-identical, high-purity S-enantiomer that bypasses the need for individual bacterial conversion, ensuring predictable physiological results in finished products.
Detailed Chemical Specifications
| Testing Parameter | Engineering Standard |
|---|---|
| Chiral Purity (HPLC) | ≥ 99.0% S-Form (R-Form < 0.5%) |
| Specific Rotation [α]D20 | -18.0° to -22.0° (c=1.0, MeOH) |
| Residual Solvents | < 500 ppm (GC-MS Headspace) |
4. Mechanism of Action: ERβ Selective Binding
S-Equol is a Selective Estrogen Receptor Modulator (SERM) with a strong preference for Estrogen Receptor beta (ERβ). Unlike conventional estrogen, S-Equol’s affinity for ERβ is significantly higher than for ERα, which may support functional properties in hormone-sensitive tissues without the stimulatory risks associated with ERα activation. It also functions as a potent 5α-dihydrotestosterone (DHT) antagonist in certain cutaneous and endocrine contexts.
Formulation & Processing Guide
Solubility Control: S-Equol is hydrophobic. For aqueous serums, utilize cyclodextrin complexation or liposomal encapsulation. For solid dosage, micronization to <20 microns is recommended to enhance absorption.
pH Stability: High molecular stability between pH 4.0 and 7.5. Avoid highly alkaline environments (pH > 9.0) during high-shear mixing.
Process Temperature: Stable up to 80°C for short periods. Add to the cooling phase in cosmetic emulsions to maintain chiral integrity.
8. COA & Quality Control Specifications
| Heavy Metals & Impurities (ICP-MS) | ||
|---|---|---|
| Lead (Pb) | < 1.0 ppm | ICP-MS |
| Arsenic (As) | < 0.5 ppm | ICP-MS |
| Total Pesticides | Negative | GC-MS/MS |
16. Technical FAQ for Bulk Buyers (PAA Interception)
A: Racemic Equol contains both S and R enantiomers. Scientific research shows that S-Equol is the only form produced naturally in the gut and possesses significantly higher binding affinity for ERβ.
A: We offer both grades. Our Bio-fermented S-Equol is preferred for “Clean Label” nutraceuticals, while our synthetic grade is optimized for cost-efficiency in large-scale topical applications. Both maintain 99%+ chiral purity.
A: S-Equol is generally recognized as safe (GRAS) in the USA for specific food uses. In Europe, it is marketed under various food supplement regulations; always check local EFSA novel food statuses for specific concentrations.
17. References & Regulatory Sources
- PubMed: Selective binding of S-Equol to ERβ in menopausal health.
- FDA GRAS Notice: GRN No. 559 – S-equol from fermented soy.
- Journal of Nutrition: Comparative bio-availability of equol enantiomers.
S-Equol Manufacturer & Quality Assurance
Manufactured by Exbiol® (Shaanxi Zhonghong Investment Technology Co., Ltd.), a GMP-certified manufacturer specializing in high-purity chiral metabolites and phyto-actives.
✔ GMP & ISO Compliant Facility
✔ Bio-fermentation Technology
✔ Global Bulk Logistics Ready
