Cosmetics · Fermented ingredients
Brown Rice Ferment Extract
玄米発酵エキス (Genmai hakkō ekisu)
Also known as: Genmai Ferment Extract
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| Category | Cosmetics |
|---|---|
| INCI name | Oryza Sativa (Brown Rice) Ferment Extract / preparation-specific |
| Japanese labeling name | 玄米発酵液 / コメ発酵エキス (preparation-specific) |
| Common Japanese notations | 玄米発酵エキス |
| Origin | Fermented (whole brown rice fermented with microbial cultures) |
| Typical functions | Skin conditioning, Antioxidant |
| Regulatory status in Japan | Cosmetic ingredient handled under the JSCI dictionary under preparation-specific names. |
Brown rice ferment extract draws on the preservation of gamma-oryzanol, ferulic acid, and other compounds present in the bran layer of whole brown rice, combined with fermentation-derived amino acids and organic acids. It is used in product lines that build on both rice heritage and fermentation positioning.
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Classification
Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.
Product applications
Regulatory tags
Common OEM product categories
Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.
- Face toners and essences
- Sheet masks
- Scalp care
Ingredient profile
Brown rice ferment extract is produced by fermenting whole brown rice with microbial cultures (often koji, yeast, or lactic acid bacteria, depending on the supplier protocol). The resulting filtrate contains amino acids, saccharides, polyphenols, and trace rice-bran-derived components.
OEM applications
In cosmetics, brown rice ferment extract appears in toners, essences, sheet masks, and scalp-care products. It complements rice-heritage product narratives alongside rice bran extract and sake-family ingredients.
Regulatory classification in Japan
Permitted under JSCI dictionary preparation-specific entries.
Regulatory classification in other markets
| EU | Rice-ferment preparations listed in CosIng under various INCI names. |
|---|---|
| USA | Used in finished cosmetic products. |
| China | Permitted per IECIC listings. |
| Korea | Permitted under KFDA / MFDS. |
Market reference formulations
Example finished products will be added after each product's current full ingredient list has been verified.
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Alternative ingredients
Related ingredients commonly evaluated as substitutes.
Quick answers
- What is Brown Rice Ferment Extract?
- Brown rice ferment extract draws on the preservation of gamma-oryzanol, ferulic acid, and other compounds present in the bran layer of whole brown rice, combined with fermentation-derived amino acids and organic acids. It is used in product lines that build on both rice heritage and fermentation positioning.
- What is the regulatory status of Brown Rice Ferment Extract in Japan?
- Cosmetic ingredient handled under the JSCI dictionary under preparation-specific names.
- What products typically use Brown Rice Ferment Extract?
- Face toners and essences / Sheet masks / Scalp care
- Where does Brown Rice Ferment Extract come from?
- Fermented (whole brown rice fermented with microbial cultures)
- What is the INCI / JSCI labeling name for Brown Rice Ferment Extract?
- INCI: Oryza Sativa (Brown Rice) Ferment Extract / preparation-specific / JSCI: 玄米発酵液 / コメ発酵エキス (preparation-specific)
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From the same origin
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Regulatory guidance
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FAQ for OEM buyers
Q. What INCI name should appear on the label for brown rice ferment products?
INCI naming depends on the specific ferment system: 'Oryza Sativa (Rice) Bran Extract' for non-fermented, but for fermented preparations the precise INCI varies by ferment microorganism (e.g., 'Lactobacillus/Rice Ferment', 'Saccharomyces/Rice Ferment Filtrate'). Confirm the exact INCI string with the supplier as it must match the COA.
Sources · Last reviewed: 2026-04-26
- Personal Care Products Council INCI Dictionary — Ferment ingredient nomenclature rules
Q. How does brown rice ferment differ from sake-related ingredients (e.g., sake lees / kojic acid)?
Brown rice ferment is the whole-grain rice fermented with various microbes (often Lactobacillus or Saccharomyces) producing a polyphenol/peptide/saccharide-rich filtrate. Sake-related ingredients (sake lees extract, kome-koji) come from the brewing process; kojic acid is a specific molecule separately regulated as a quasi-drug whitening active in Japan.
Sources · Last reviewed: 2026-04-26
- 厚生労働省 (Ministry of Health, Labour and Welfare) — Quasi-drug Active Ingredient Standards (kojic acid as approved whitening active)
Q. What is the typical use level and format?
Liquid ferment filtrates are typically used at 1-10% in toners and essences; some Japanese hero-product positioning uses 50%+ ferment as the primary water-phase. Format is liquid filtrate, sometimes additionally preserved with phenoxyethanol or similar.
Sources · Last reviewed: 2026-04-26
- Industry knowledge — Japanese ferment skincare suppliers
Industry-knowledge claim — not yet pinned to a single primary source
Q. Are there preservation challenges with ferment-based products?
Yes — ferment filtrates contain organic substrates that can support microbial growth, so robust preservation systems are required and challenge-testing per ISO 11930 is standard practice. Suppliers typically pre-preserve the bulk filtrate with paraben-free systems for clean-beauty compatibility.
Sources · Last reviewed: 2026-04-26
- ISO 11930 — Cosmetics Microbiology Preservation Efficacy Testing
Use cases
Premium ferment essence / hero product
- Positioning
- Japanese rice-heritage luxury skincare (SK-II-style positioning)
- Typical usage level
- 30-95% as the primary water-phase ingredient
- Formulation notes
- Often the named hero ingredient; minimal added water; clean preservation
Sources
- Industry knowledge — Japanese ferment-skincare market
Industry-knowledge claim — not yet pinned to a single primary source
Hydrating toner
- Positioning
- Daily-use ferment-rice line, mid-tier
- Typical usage level
- 5-20%
- Formulation notes
- Pairs with rice bran extract, Saccharomyces extracts, niacinamide
Sources
- Industry knowledge — Japanese skincare market
Industry-knowledge claim — not yet pinned to a single primary source
Sheet mask serum
- Positioning
- Heritage rice-themed mask line
- Typical usage level
- 5-15%
- Formulation notes
- Lower-viscosity serum supports good substrate release
Sources
- Industry knowledge — sheet mask market
Industry-knowledge claim — not yet pinned to a single primary source
Scalp tonic / shampoo
- Positioning
- Rice-heritage hair-care line (Tsubaki/Ichikami-adjacent positioning)
- Typical usage level
- 1-5%
- Formulation notes
- Compatible with sulfate-free surfactant systems
Sources
- Industry knowledge — Japanese rice-themed hair-care market
Industry-knowledge claim — not yet pinned to a single primary source
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Official regulatory databases
External links to public Japanese / international regulatory authorities. We are not affiliated.
References
- JSCI (Japanese Cosmetic Industry Association) labeling name directory — rice fermentation entries
Last updated: 2026-04-22. Ingredient entries are reviewed at least annually against current regulatory listings.