What Is Aspergillus/Glucose/Soybean/Starch Ferment Filtrate?
Aspergillus/Glucose/Soybean/Starch Ferment Filtrate is a liquid obtained after fermenting a mix of glucose, soybean and starch with the fungus Aspergillus. During fermentation the microorganism breaks these plant-based materials into smaller compounds like amino acids, peptides and sugars that remain in the final filtrate. These naturally formed molecules can help condition surfaces and balance pH, which is why the filtrate has caught the attention of cosmetic chemists.
Fermentation science has long been used in foods and beverages, and the beauty world began borrowing the idea in the early 2000s to harvest gentle yet effective ingredients created by microbes. The filtrate is produced by allowing Aspergillus to grow under controlled temperature and humidity while it feeds on the glucose-soy-starch mixture. After a set time the liquid is separated, filtered to remove any remaining cells, then refined so it is clear and stable for use in formulas.
You will most often see Aspergillus/Glucose/Soybean/Starch Ferment Filtrate in oral care products such as toothpastes, mouth rinses and whitening gels. It can also appear in specialty lip treatments that aim to freshen breath or support a clean feeling in the mouth.
Aspergillus/Glucose/Soybean/Starch Ferment Filtrate’s Cosmetic Benefits/Uses
This ingredient is valued mainly for its role in oral care. It helps maintain a healthy environment in the mouth by supporting a balanced pH and by gently breaking down surface debris on teeth and gums. These actions can leave the mouth feeling cleaner and fresher which in turn enhances the overall experience of a toothpaste or mouthwash.
Who Can Use Aspergillus/Glucose/Soybean/Starch Ferment Filtrate
This ferment filtrate is considered gentle and is normally well tolerated by all skin types including dry, oily, combination and sensitive. Because it is mainly used in oral care products it rarely sits on facial skin long enough to trigger issues like clogged pores or excess oil. Those with a known soybean allergy should read labels carefully since the ingredient is sourced in part from soy.
The raw materials come from plants and a non-animal microorganism so the filtrate is suitable for both vegans and vegetarians. No animal by-products or animal testing are required to make it.
Current safety data shows no special risks for people who are pregnant or breastfeeding when the ingredient is used as directed in toothpaste or mouthwash. This is not medical advice and anyone who is pregnant or nursing should still clear new personal care products with a healthcare professional just to be safe.
The filtrate does not increase photosensitivity, meaning it will not make skin or lips more prone to sunburn. It also plays well with most common oral care actives including fluoride, mild abrasives and plant extracts.
Potential Side Effects/Adverse Reactions
Reactions to topical or oral use of Aspergillus/Glucose/Soybean/Starch Ferment Filtrate can vary from person to person. The following list covers possible but uncommon side effects when the ingredient is used correctly in a finished product.
- Allergic response in individuals sensitive to soy
- Mild irritation or stinging of the gums if the product is overused
- Rare case of fungal sensitivity leading to redness around the lips
If any of these effects occur stop using the product and seek advice from a healthcare professional.
Comedogenic Rating
Rating: 0 / 5
Aspergillus/Glucose/Soybean/Starch Ferment Filtrate is water based and free of heavy oils, waxes or fatty acids that normally clog pores. It is usually rinsed out of the mouth rather than left sitting on facial skin so there is minimal chance it will block follicles or encourage breakouts. Because of this, the ingredient is considered non-comedogenic and is generally suitable for acne-prone users.
The only extra point worth noting is that some specialty lip products containing the filtrate might remain on the skin longer than toothpaste or mouthwash. Even then, the lightweight nature of the filtrate keeps the pore-clogging risk extremely low.
Summary
Aspergillus/Glucose/Soybean/Starch Ferment Filtrate acts as a gentle oral care helper. Produced through fermentation, it supplies naturally derived amino acids and sugars that support pH balance and help loosen surface debris on teeth and gums, leaving the mouth feeling cleaner and fresher. While not a household name, the filtrate is gaining quiet popularity among formulators looking for mild plant-based alternatives to harsher synthetic agents.
Safety studies show it to be low risk for most people, with soy allergy being the main caveat. Always check the ingredient list and, as with any new cosmetic product, perform a small patch test first to make sure your skin and mouth tolerate it well.