Traditional · Fermented foods

Miso Extract

味噌エキス (Miso ekisu)

Also known as: Fermented Soybean Paste Extract

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Why now · 2022 — ongoing

Japan's Fermentation Pantry: Koji, Amazake, Miso, and Sake Kasu

Koji, miso, sake kasu, and amazake have moved from ethnic-foods aisle into mainstream wellness. We unpack the categories, certifications, and buyer-facing differences.

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At a glance

CategoryTraditional
INCI nameSoybean Seed Extract (for soybean-based fermentation preparations) / supplier-specific INCI
Japanese labeling nameミソエキス / 大豆発酵エキス (preparation-specific)
Common Japanese notations味噌エキス, ミソエキス
OriginFermented (soybeans fermented with koji and salt)
Typical functionsFood ingredient (primary use), Cosmetic skin conditioning (specialty applications)
Regulatory status in JapanMiso is a food regulated under the Food Sanitation Act. Specialty cosmetic extracts derived from miso are handled under the JSCI (Japanese Cosmetic Industry Association) labeling name dictionary.

Miso is the umbrella term for Japan's family of fermented soybean pastes — white miso, red miso, mixed miso, and region-specific styles. It is produced by fermenting cooked soybeans with koji (Aspergillus oryzae) and salt for periods ranging from weeks to years. Some regional miso types including 八丁味噌 (Hatchō miso) are protected under Japan's geographical indication system; ingredient labeling uses generic "miso extract" terminology without regional names.

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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.

Common OEM product categories

Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.

  • Miso soup, marinades, and seasoning blends
  • Pickled vegetables (misozuke)
  • Fermented-beauty specialty cosmetics (face masks, serums)
  • Body cleansers and bath products
  • Functional snacks and crackers

Ingredient profile

Miso is produced by combining cooked, mashed soybeans with koji rice (or barley koji), salt, and water, then allowing extended fermentation. The product contains soybean-derived proteins and amino acids, koji-derived enzymes and metabolites, and salt-tolerant yeast and lactic acid bacteria secondary metabolites.

Cosmetic miso extracts are produced by aqueous or hydro-alcoholic extraction of specific miso preparations and are standardized for color, solids, and ingredient-specification compliance.

Miso Extract vs Hatcho Miso. This entry covers Miso Extract as a general category — typically a cosmetic-grade extract derived from miso preparations and used in fermented-beauty formulations. Hatcho Miso (八丁味噌, GI-registered in 2024) is a separate, food-grade GI-protected miso variety produced from 100% soybean (no rice or barley) in the Hatchō district of Okazaki City and aged in wooden barrels for at least two years. Hatcho Miso is a culinary product, not interchangeable with cosmetic Miso Extract; see the dedicated Hatcho Miso entry for production and trademark/GI context.

OEM applications

In food, miso is a foundational Japanese seasoning used in soup, marinades, pickles, sauces, and countless regional dishes.

In cosmetics, miso-derived extracts are used in small-volume specialty fermented-beauty lines. These applications typically reference Japanese fermentation heritage as positioning.

Regulatory classification in Japan

Food miso is regulated under the Food Sanitation Act. JAS (Japanese Agricultural Standards) classifications apply for categorization by style and aging.

Specialty cosmetic extracts are handled under the JSCI dictionary for the relevant preparation-specific name.

Hatchō miso (八丁味噌) from Aichi prefecture is recognized under Japan's geographical indication system. Cosmetic ingredient labels use generic miso-derived terminology, not regional-designation names.

Regulatory classification in other markets

EUFood-grade miso is widely imported and sold in the EU. Cosmetic preparations derived from miso-related fermentation are handled under preparation-specific INCI names in CosIng.
USAMiso is a widely recognized fermented food with a long import history in the US. Cosmetic uses are less common but accepted.
ChinaSoybean-fermentation cosmetic preparations should be verified against IECIC on a case-by-case basis.
KoreaSimilar fermented soybean products (doenjang) exist in Korean food culture; cosmetic crossover is limited.

Market reference formulations

Example finished products will be added after verification. Regional miso types protected under Japan's GI system (such as 八丁味噌) are handled as descriptive production-region notes rather than as product-name references.

All brand names and product names referenced anywhere on this site are the property of their respective owners. Example entries are provided for informational purposes only and do not imply endorsement.

Alternative ingredients

Related ingredients commonly evaluated as substitutes.

Quick answers

What is Miso Extract?
Miso is the umbrella term for Japan's family of fermented soybean pastes — white miso, red miso, mixed miso, and region-specific styles. It is produced by fermenting cooked soybeans with koji (Aspergillus oryzae) and salt for periods ranging from weeks to years. Some regional miso types including 八丁味噌 (Hatchō miso) are protected under Japan's geographical indication system; ingredient labeling uses generic "miso extract" terminology without regional names.
What is the regulatory status of Miso Extract in Japan?
Miso is a food regulated under the Food Sanitation Act. Specialty cosmetic extracts derived from miso are handled under the JSCI (Japanese Cosmetic Industry Association) labeling name dictionary.
What products typically use Miso Extract?
Miso soup, marinades, and seasoning blends / Pickled vegetables (misozuke) / Fermented-beauty specialty cosmetics (face masks, serums) / Body cleansers and bath products / Functional snacks and crackers
Where does Miso Extract come from?
Fermented (soybeans fermented with koji and salt)
What is the INCI / JSCI labeling name for Miso Extract?
INCI: Soybean Seed Extract (for soybean-based fermentation preparations) / supplier-specific INCI / JSCI: ミソエキス / 大豆発酵エキス (preparation-specific)

FAQ for OEM buyers

Q. How is 'miso' regulated for labeling in Japan?

Miso is defined under JAS-related quality labeling standards as a fermented seasoning made from soybeans (with or without rice/barley) plus salt and koji. Regional miso names (e.g., Shinshu miso, Sendai miso, Hatcho miso) may carry additional traditional or GI-style protections; Hatcho miso production has historical-region associations.

Q. What miso categories are typically offered in OEM private label?

Standard categories are kome miso (rice koji-based, by far the largest share), mugi miso (barley koji-based), mame miso (soybean koji, including Hatcho-style), and chogo miso (blended). Within rice miso, color (white/red/awase) and salt level (genshio/teshio) are major OEM SKU axes.

Sources · Last reviewed: 2026-04-26

Industry-knowledge claim — not yet pinned to a single primary source

Q. Are there allergen labeling considerations for OEM miso products?

Yes — soybean is a recommended-display allergen in Japan, and most miso products containing wheat (e.g., barley miso may contain trace wheat depending on facility) require labeling of relevant allergens. For overseas markets, soy allergen declarations are typically mandatory.

Sources · Last reviewed: 2026-04-26

Q. What format options exist for retail and foodservice OEM miso?

Common formats are 300-750 g resealable cup/tub for retail, 1-4 kg pouch/tub for foodservice, freeze-dried instant miso soup cubes/sachets, and 10-20 kg bulk for prepared-food manufacturers. Reduced-salt and dashi-iri (with built-in dashi) variants are widespread.

Sources · Last reviewed: 2026-04-26

  • Industry knowledge — Japanese miso market

Industry-knowledge claim — not yet pinned to a single primary source

Use cases

  • Standard awase miso (rice + soybean blend) retail tub

    Positioning
    Daily-use miso for soup and cooking
    Formulation notes
    300-750 g cup pack; medium salt and color blend.

    Sources

    • Industry knowledge — Japanese miso retail

    Industry-knowledge claim — not yet pinned to a single primary source

  • Premium long-aged miso (gift-grade)

    Positioning
    Specialty/gourmet retail; export-oriented
    Formulation notes
    Single-origin soybeans, 1-3 year aging; wood-bucket aging story.

    Sources

    • Industry knowledge — Japanese craft miso producers

    Industry-knowledge claim — not yet pinned to a single primary source

  • Freeze-dried instant miso soup cube

    Positioning
    Convenience daily-meal soup with built-in tofu/wakame/negi
    Formulation notes
    Freeze-dried miso ball + dehydrated garnish; foil sachet.

    Sources

    • Industry knowledge — Japanese instant miso soup OEM

    Industry-knowledge claim — not yet pinned to a single primary source

  • Miso-derived cosmetic essence (specialty fermented beauty)

    Positioning
    Small-batch fermentation-heritage skincare line
    Typical usage level
    0.1-5% miso-derived extract in essence
    Formulation notes
    INCI varies by supplier; often combined with sake-related ingredients.

    Sources

    • Industry knowledge — Japanese fermented-beauty cosmetic formulation

    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

  1. 農林水産省 (Ministry of Agriculture, Forestry and Fisheries) Japanese Agricultural Standards (JAS) for miso
  2. Japan Federation of Miso Manufacturers Cooperatives

Last updated: 2026-04-25. Ingredient entries are reviewed at least annually against current regulatory listings.

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