What Is Aspergillus/Enterococcus Faecium/Lactobacillus/Rice Bran Ferment Filtrate?
Aspergillus/Enterococcus Faecium/Lactobacillus/Rice Bran Ferment Filtrate is a liquid derived from fermenting rice bran with three kinds of friendly microbes: Aspergillus, Enterococcus faecium and Lactobacillus. Rice bran, the outer layer of the rice grain, is naturally rich in vitamins, amino acids, minerals and lipids. When these nutrients break down during fermentation they form smaller, skin-loving molecules such as peptides, sugars and organic acids. This makes the final filtrate lighter, easier for skin to absorb and packed with conditioning compounds.
Using fermented rice in beauty routines is not new. Traditional Japanese and Korean skin care has long praised “rice water” for its softening effect. Modern labs took this folk idea and applied controlled fermentation to standardize and concentrate the benefits. The process starts by soaking purified rice bran in water, introducing the three microorganisms, then letting them ferment under precise temperatures. After a set time the mixture is filtered to remove solids, yielding a clear or slightly amber liquid that is stable and odor-neutral.
Because it boosts moisture and gives a smooth skin feel, this filtrate shows up in a variety of products. You may find it in hydrating essences, sheet masks, anti-aging serums, lightweight lotions and soothing after-sun gels. It is also popular in premium hair conditioners and scalp tonics where softness without heaviness is desired.
Aspergillus/Enterococcus Faecium/Lactobacillus/Rice Bran Ferment Filtrate’s Cosmetic Benefits/Uses
This ingredient is valued mainly for one key role in skin care.
Skin conditioning: The blend of fermented peptides, amino acids and natural sugars attracts moisture and helps it stay in the outer skin layers. Regular use can leave skin feeling smoother, plumper and more supple while reducing the look of rough patches or flakiness. Its lightweight texture makes it suitable for products that aim to hydrate without greasiness, which is why formulators add it to both water-based and emulsified systems.
Who Can Use Aspergillus/Enterococcus Faecium/Lactobacillus/Rice Bran Ferment Filtrate
This ferment filtrate works well for most skin types including dry, oily, combination, normal and sensitive skin because it hydrates without adding heavy oils or pore-clogging waxes. Those with very reactive or allergy-prone skin may still want to follow the usual precautions since any fermented ingredient contains naturally produced compounds that could trigger a rare sensitivity.
The ingredient is derived solely from rice bran and microorganisms so it is suitable for vegans and vegetarians. None of the source materials or processing aids are animal based, though finished products that include the filtrate might contain other animal-derived ingredients so checking the full label is best.
Current research shows no specific concerns for pregnant or breastfeeding women when this ingredient is used topically in cosmetic amounts. This is not medical advice and anyone who is pregnant or nursing should review new skincare products with a qualified healthcare provider to be safe.
The filtrate does not make skin more prone to sunburn and can be used both day and night without increasing photosensitivity. It is also odor-neutral and colorless so it rarely interferes with added fragrances or pigments in a formula.
Potential Side Effects/Adverse Reactions
Individual responses to topical Aspergillus/Enterococcus Faecium/Lactobacillus/Rice Bran Ferment Filtrate vary. The points below list potential side effects, but these outcomes are uncommon when the ingredient is properly processed and formulated.
- Mild redness or stinging on very sensitive skin
- Allergic contact dermatitis in persons allergic to rice proteins or specific microbial by-products
- Transient itching if applied to broken or freshly exfoliated skin
- Rare acne-like breakouts in individuals extremely prone to fungal acne
- Risk of irritation from other active ingredients in the same formula rather than from the filtrate itself
If any unexpected irritation or discomfort occurs stop using the product immediately and consult a healthcare professional.
Comedogenic Rating
Rating: 0–1 (virtually non-comedogenic)
This filtrate is mostly water with small, water-soluble molecules like amino acids and sugars and only trace lipids from rice bran. It leaves no greasy residue and does not form a film that can block pores. Fermentation also breaks down heavier compounds that might otherwise sit on the skin. Because of these factors the risk of clogging pores is minimal.
That makes it a comfortable choice for people who are prone to acne or fungal breakouts.
Formula context still matters: if the product pairs the filtrate with heavy oils or waxes the overall pore-clogging potential could rise, but the filtrate itself ranks very low.
Summary
Aspergillus/Enterococcus Faecium/Lactobacillus/Rice Bran Ferment Filtrate is used chiefly as a skin-conditioning agent. The fermentation process turns nutrient-rich rice bran into a lightweight liquid packed with peptides, amino acids and natural sugars that draw water to the skin and smooth its surface. The result is softer, plumper skin without heaviness.
The ingredient enjoys steady popularity in Asian beauty lines and is gradually appearing in Western serums, essences and hair treatments, though it is still considered a niche ferment outside of dedicated hydration formulas.
Safety reviews show it is well tolerated for most skin types with a very low comedogenic rating and no known photo-sensitizing effects. As with any new skincare ingredient it is smart to patch test a small area first to rule out unique sensitivities.