What Is Aspergillus/Saccharomyces/Rice Ferment Filtrate?
Aspergillus/Saccharomyces/Rice Ferment Filtrate is a liquid obtained after rice has been fermented by two friendly microorganisms, Aspergillus and Saccharomyces. During fermentation these microbes break down rice starches and proteins into smaller, skin-loving molecules such as amino acids, peptides, vitamins B and E, minerals, sugars and organic acids. The result is a lightweight watery filtrate that skin can readily absorb.
The beauty world first took notice of this ingredient by observing the smooth youthful hands of sake brewers in Japan. Inspired by that link between fermented rice and healthy skin, cosmetic chemists began refining the liquid for topical use in the late 20th century. Today the filtrate is made in controlled tanks where steamed rice is inoculated with the microbes, allowed to ferment for several days, then filtered, purified and preserved for stability.
You will most often spot Aspergillus/Saccharomyces/Rice Ferment Filtrate in hydrating toners, essences, serums, sheet masks, anti aging moisturizers, brightening treatments and even lightweight hair conditioners where a boost of moisture and softness is desired.
Aspergillus/Saccharomyces/Rice Ferment Filtrate’s Cosmetic Benefits/Uses
In skin and hair care formulas this ferment offers a double benefit
- Humectant – attracts water from the environment and draws it into the upper layers of skin or hair helping to keep them plump, smooth and refreshed throughout the day
- Skin conditioning – deposits a thin film rich in amino acids and sugars that softens rough patches, supports a healthy skin barrier and leaves a silky feel without heaviness
Who Can Use Aspergillus/Saccharomyces/Rice Ferment Filtrate
This ferment filtrate is generally suitable for all skin types. Its watery texture absorbs quickly without leaving oil behind making it friendly for oily and combination skin while the humectant action helps lock in moisture that dry or mature skin craves. Sensitive skin usually tolerates it well because it is low in alcohol and fragrance, though anyone with a known yeast or mold allergy should proceed carefully.
The ingredient is plant based and cultivated with microorganisms so it contains no animal derivatives which makes it appropriate for both vegans and vegetarians.
No research suggests that topical use poses a special risk to women who are pregnant or breastfeeding. Still this is not medical advice and expecting or nursing mothers should check with a doctor before adding any new skincare product.
Aspergillus/Saccharomyces/Rice Ferment Filtrate is not known to increase photosensitivity and can be used morning or night. Daily sunscreen is still advised to guard against routine sun damage.
Potential Side Effects/Adverse Reactions
Side effects from topical use of Aspergillus/Saccharomyces/Rice Ferment Filtrate differ from person to person. The following are potential reactions that could occur but they are uncommon when the ingredient is properly formulated and used as directed.
- Transient tingling or mild warmth during the first few applications
- Temporary redness or irritation in very sensitive skin
- Allergic response such as itching or swelling in individuals with yeast or mold allergies
- Rare acne flare up if the overall formula is too rich for the user’s skin
- Contact dermatitis when combined with other strong actives or fragrances in the same routine
If any unwanted reaction occurs discontinue use immediately and consult a healthcare professional.
Comedogenic Rating
Rating: 0 / 5 – Aspergillus/Saccharomyces/Rice Ferment Filtrate is a water-based ferment with no heavy oils or waxes so it does not clog pores. Its small humectant molecules sit on the surface or pull water into skin rather than blocking follicles.
That makes it generally safe for people who are prone to acne or frequent breakouts.
Because the ingredient is usually added at low concentrations and paired with lightweight formulas the risk of pore congestion remains minimal even when layered with other products.
Summary
Aspergillus/Saccharomyces/Rice Ferment Filtrate acts mainly as a humectant and skin-conditioning agent. During fermentation rice is broken down into amino acids sugars and vitamins that bind water and smooth the skin barrier, leading to a plumper softer feel without greasiness.
The ferment has become a quiet favorite in Asian beauty circles and is now showing up in more global toners serums and sheet masks thanks to its light texture and visible hydration boost.
Current research and long-time cosmetic use point to a high level of safety with low irritation potential. Still everyone’s skin is unique so it is smart to patch test any new product that contains this ingredient before applying it all over the face.