What Is Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate?
Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate is a liquid obtained after fermenting apple fruit and rice seed with the friendly mold Aspergillus. During fermentation the microorganism breaks down large plant molecules into smaller skin-loving compounds such as amino acids, simple sugars, vitamins and organic acids. These tiny molecules can penetrate the skin surface more easily than the raw plant material, making the filtrate a useful cosmetic ingredient.
Fermentation has a long history in beauty rituals across Asia, where ingredients like sake lees and fermented rice water have been prized for brightening and smoothing effects. Building on that heritage labs began experimenting with different fruit and grain combinations in the early 2000s to create milder yet effective actives. Apple was chosen for its natural fruit acids and antioxidants while rice seed adds soothing starches and minerals. Aspergillus is widely used in food industries to make soy sauce and miso so it was a logical, safe choice for controlled cosmetic fermentation.
Manufacturers start by mashing apple pulp and finely milled rice seed, inoculating the mixture with a pure strain of Aspergillus. The blend ferments under carefully regulated temperature and humidity for several days to weeks. After the desired level of breakdown is reached the mash is filtered multiple times to remove solids, yielding a clear to slightly amber liquid with a mild sweet scent. The filtrate is then standardized for consistency and preserved before being shipped to cosmetic formulators.
You will typically find Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate in hydrating serums, sheet masks, lightweight gel moisturizers, anti aging essences and brightening lotions where brands want a natural origin humectant that also offers a touch of antioxidant support.
Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate’s Cosmetic Benefits/Uses
This fermented filtrate plays a single but important role in skincare formulas.
Humectant: It attracts water from the environment and the deeper layers of the skin, helping the outer layer stay plump and flexible. By binding moisture it can soften rough patches, reduce the appearance of fine lines caused by dehydration and improve the overall texture of a product so it glides on smoothly without feeling greasy.
Who Can Use Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate
This gentle humectant is generally friendly to all skin types. Dry, normal and combination skin tend to appreciate its water-binding talent the most, while oily or sensitive complexions usually tolerate it well because it is lightweight and non-greasy. Because it does not contain heavy oils or pore-clogging waxes it seldom poses issues for acne-prone users.
The filtrate is produced from apple fruit, rice seed and a food-grade fungus so it is suitable for vegans and vegetarians. No animal-derived materials are involved at any stage of production.
Pregnant and breastfeeding women can typically use products containing this ingredient, as there are no known hormonal or systemic concerns linked to topical application. That said this is not medical advice and anyone expecting or nursing should clear any skincare routine with a healthcare professional.
The ingredient does not increase photosensitivity so it will not make skin more prone to sunburn. It also layers well with most active ingredients such as vitamin C, niacinamide and retinoids, adding hydration without disrupting their performance.
Potential Side Effects/Adverse Reactions
Reactions to topical Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate vary from person to person. The effects listed below are possible not probable; most users experience none of these issues when the ingredient is correctly formulated and preserved.
- Skin irritation – mild stinging or burning can occur in very sensitive skin especially if the product also contains exfoliating acids
- Redness or flushing – temporary warmth or redness may appear in individuals reactive to fermented extracts
- Allergic contact dermatitis – rare but possible in people allergic to apples, rice or fungal proteins
- Itching or hives – a histamine response that subsides after rinsing off the product
- Breakouts – if a formula pairs the filtrate with heavy emollients some acne-prone users might notice clogged pores
- Spoilage-related issues – poorly preserved DIY or expired products could harbor microbes leading to infection or rash
If any of these effects occur stop using the product and consult a qualified healthcare provider.
Comedogenic Rating
Rating: 0/5
This filtrate is water based with virtually no lipids or heavy waxes so it does not linger in pores or create the type of film that blocks sebum flow. The small molecules produced during fermentation are readily absorbed or evaporate, leaving nothing that typically triggers blackheads or whiteheads.
Because of this it is considered safe for people who are prone to acne and breakouts.
Keep in mind that the overall formula matters. If the filtrate is blended into a rich cream full of occlusive oils the final product could still feel heavy even though the ferment itself is non-comedogenic.
Summary
Aspergillus/Malus Domestica Fruit/Rice Seed Ferment Filtrate acts mainly as a humectant, drawing moisture into the outer skin layers so they stay supple and smooth. Fermentation breaks apple and rice components into tiny sugars, amino acids and organic acids that easily bond with water then deliver it where skin needs it most. The process also preserves a light dose of natural antioxidants, giving the ingredient a subtle supportive role against free-radical damage.
While not as famous as hyaluronic acid or glycerin, this ferment has carved out a modest following among brands that lean toward gentle, naturally inspired hydration. You will spot it most often in K-beauty and indie formulas that want a unique story without compromising performance.
Safety data and long-time use in food fermentation point to a very low risk profile. Most people can enjoy its benefits without issue, yet it is always smart to patch test a new product first just to be sure your skin agrees.