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S-Equol

S-Equol is a bioactive natural substance converted from soy isoflavones by specific intestinal microflora. It precisely targets estrogen receptor-β and exerts beneficial phyto-estrogen-like effects. It is a key functional raw material for women’s-health applications. As a naturally occurring S-enantiomer, S-Equol binds selectively to estrogen receptor-β. It delivers positive effects including relieving menopausal hot flashes, slowing bone-mass loss, supporting cardiovascular wellness, and providing anti-aging benefits for skin. Its safety profile has been validated by multiple toxicological studies and clinical trials with good human tolerability.

S-Equol — A Preferred Alternative to Conventional Hormone Replacement Therapy (HRT)

The fundamental difference between S-Equol and conventional hormone replacement therapy (HRT): S-Equol is a non-steroidal, highly-selective ER-β agonist. It preferentially triggers ER-β-mediated signals for anti-inflammation, neuroprotection and bone protection, while exhibiting very low proliferative activity on reproductive tissues (breast, endometrium, ovary) governed by ER-α. Therefore it delivers menopausal-health benefits while substantially lowering risks such as endometrial hyperplasia and excessive breast-cell proliferation associated with classic HRT.

Item

Conventional HRT

S-Equol

Mechanism of action

Exogenous sex-hormone supplementation to raise systemic hormone levels; considerable side-effect potential

Does not alter endogenous hormone concentrations; modulates biological signals via selective ER-β activation

Mode of action

Systemic hormone boost; strongly activates both ER-α and ER-β

High receptor selectivity; ER-β affinity approx. 13-fold higher than ER-α; precise targeted action

Eligibility

Physician prescription required; strict indications & contra-indications; individual medical assessment mandatory

Classified as dietary-supplement ingredient; suitable for self-selected use by menopausal women

 

Application Fields

  1. Dietary supplement ingredients: Formulations for menopausal comfort, bone health and female endocrine care.
  2. Cosmetic raw material: Antioxidation, anti-aging, moisturizing & skin-repair skincare formulations.

 

Key Product Advantages

  1. Manufactured by microbial fermentation together with green purification processes; free of chemical-synthesis residues and organic-solvent contamination.
  2. Produced using FDA-recognized safe microbial strains.
  3. Natural S-configuration, structurally identical to human endogenous equol, mild and safe for use.
  4. High assay and purity with consistent batch-to-batch quality.
  5. Favorable physicochemical stability, compatible with multiple formulations including tablets, capsules, powder, gummies and cosmetic skincare formulas.

 

Packaging & Specifications

Assay (HPLC): 98%‑99% 

Storage: Seal, protect from light, store in cool & dry environment; low‑temperature storage recommended for long‑term shelf‑life.