What Is Bacillus/Cabbage Leaf Ferment Extract Filtrate?
Bacillus/Cabbage Leaf Ferment Extract Filtrate is a plant-based ingredient that starts with common green cabbage leaves, Brassica oleracea capitata. The leaves are chopped and submerged in a nutrient solution, then inoculated with a safe species of Bacillus bacteria. During fermentation the bacteria break down the leaf material and release skin-loving compounds such as peptides, amino acids, vitamins, minerals and gentle organic acids. Once the process reaches the desired point, the mixture is filtered to remove solids, leaving a clear liquid that is further purified and standardized for cosmetic use.
Fermented plant extracts have a long history in traditional self-care rituals, especially in East Asia, and modern formulators adopted them for their ability to deliver nutrients in a more bioavailable form. As the clean beauty trend grew, brands searched for upcycled ingredients that pair food-grade starting materials with microbiology, which helped this filtrate gain traction.
You will most often spot Bacillus/Cabbage Leaf Ferment Extract Filtrate in hydrating serums, calming or revitalizing sheet masks, lightweight moisturizers, anti-aging emulsions, after-sun soothing gels and even refreshing facial mists. Its water-like texture makes it easy to incorporate without weighing products down.
Bacillus/Cabbage Leaf Ferment Extract Filtrate’s Cosmetic Benefits/Uses
Formulators turn to this ferment when they want to add gentle nourishment and a healthy-looking glow to the skin.
Skin conditioning: The filtrate delivers moisturising sugars, amino acids and antioxidants that help soften the skin surface, support a balanced moisture barrier and leave the complexion looking smooth and supple.
Who Can Use Bacillus/Cabbage Leaf Ferment Extract Filtrate
This ferment is generally well tolerated by all skin types, including oily, combination, dry and even reactive or sensitised skin, because it is water light, non occlusive and free of common irritants like fragrance or essential oils. Those with very compromised or weeping eczema should still proceed cautiously, as any water based active can tingle on raw skin.
The material is 100% plant derived and the fermentation step relies on non animal Bacillus bacteria, so it is suitable for vegans and vegetarians.
No evidence links the ingredient to hormonal disruption or foetal risk, so pregnant or breastfeeding users can normally incorporate it. This is not medical advice and anyone who is expecting or nursing should clear all new skincare with their doctor first.
The filtrate does not make skin more sensitive to sunlight, so there is no extra risk of photosensitivity.
Potential Side Effects/Adverse Reactions
Individual responses to topical Bacillus/Cabbage Leaf Ferment Extract Filtrate can differ. The effects listed below are possible yet uncommon when the ingredient is included at standard cosmetic levels and produced under good manufacturing practices.
- Mild itching or stinging
- Transient redness, especially on very sensitive or compromised skin
- Allergic contact dermatitis in people allergic to cabbage or other Brassica vegetables
- Rare follicular pustules if a contaminated product introduces live bacteria to broken skin
If any discomfort, rash or swelling appears, discontinue use and seek medical advice.
Comedogenic Rating
Rating: 0 / 5
Bacillus/Cabbage Leaf Ferment Extract Filtrate is almost entirely water based with no heavy oils, waxes or fatty alcohols that can clog pores. The low-molecular-weight nutrients created during fermentation absorb quickly and rinse away easily, so they do not linger inside follicles. For these reasons it earns a solid 0 on the comedogenic scale.
Suitable for acne-prone or breakout-prone skin.
Because the ingredient itself is non-comedogenic, the final product’s pore-clogging potential will depend more on the rest of the formula so always consider the full ingredient list.
Summary
Bacillus/Cabbage Leaf Ferment Extract Filtrate is a lightweight fermented plant fluid that conditions skin by supplying amino acids, peptides, antioxidants and gentle organic acids that support a smooth hydrated barrier. Fermentation breaks the cabbage leaf biomass into smaller more bioavailable molecules, letting skin drink in the benefits without heaviness.
The ingredient enjoys steady popularity in Korean and clean beauty products though it is still a niche choice compared with classics like aloe or glycerin. Brands appreciate its upcycled story and versatility across serums masks and gels.
Safety data and real-world use point to a very low risk profile with rare irritation or allergy mainly in people sensitive to Brassica vegetables. As with any new skincare step it is smart to patch test before full-face use just to be safe.