What Is Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate?
Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate is a fluid collected after fermenting an herbal extract from the Saururus chinensis plant with the probiotic bacterium Enterococcus faecium. The plant, sometimes called Asian lizard’s tail, is rich in natural antioxidants and soothing compounds. During fermentation the bacteria break down the plant’s larger molecules into smaller ones that skin can absorb more easily, while also creating extra skin-friendly peptides and sugars.
This type of botanical ferment gained attention in Korean skincare in the early 2000s when brands began looking for gentle yet effective alternatives to harsh synthetic actives. The success of other fermented ingredients like galactomyces filtrate paved the way for Saururus chinensis to be explored. Today manufacturers soak the dried plant material in water, introduce a controlled culture of Enterococcus faecium, let the mix ferment for several days then filter out solids and bacteria to leave a clear, nutrient-rich liquid.
The filtrate appears in lightweight essences, hydrating toners, sheet masks, daily moisturizers, eye creams, brightening serums and anti-aging blends that aim to calm, soften and strengthen the skin barrier.
Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate’s Cosmetic Benefits/Uses
This ferment brings a mix of comfort, moisture and barrier support to many formulas.
- Skin conditioning: The blend of broken-down plant compounds, amino acids and sugars helps smooth rough patches, improve softness and leave skin feeling balanced and healthy
- Emollient: Light natural oils and fatty acids produced during fermentation form a fine layer on the surface, reducing water loss and giving skin a supple, refreshed look
Who Can Use Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate
This ferment suits most skin types including dry, normal, combination, oily and sensitive because it is lightweight and calming. Those with extremely reactive or highly allergic skin should introduce it cautiously since botanicals and probiotics can sometimes trigger a response in very delicate barriers.
The ingredient is made from a plant extract and a cultured probiotic bacterium, with no material derived from animals, so it is appropriate for both vegans and vegetarians.
There is no evidence that the filtrate poses a specific risk for pregnant or breastfeeding women, however this is not medical advice and anyone who is expecting or nursing should check with a doctor before adding new skincare products just to be safe.
The filtrate is not known to cause photosensitivity, so users do not have to take extra sun protection measures beyond their usual daily sunscreen. It layers well with most actives and tends to play nicely in both day and night routines.
Potential Side Effects/Adverse Reactions
Side effects and reactions to the topical use of Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate vary from person to person. The points below outline potential issues only, and most users should not expect to experience them when the ingredient has been properly formulated and preserved.
- Mild redness or warmth some people may feel a temporary flush as the skin adjusts
- Itching or stinging especially on compromised or freshly exfoliated skin
- Allergic contact dermatitis in individuals sensitive to Saururus chinensis or probiotic fragments
- Breakouts rare but possible if a formula containing the filtrate also includes heavy occlusive ingredients that trap oil
- Contamination risk only if a product is poorly preserved since the ferment provides nutrients that microbes could use to grow
If any irritation or unexpected reaction occurs stop using the product and consult a healthcare professional.
Comedogenic Rating
Rating: 0 / 5 (non-comedogenic)
The filtrate is a watery solution rich in low-molecular antioxidants, peptides and sugars, with virtually no heavy oils or waxes that could clog pores. Because it sits lightly on the skin and is quickly absorbed, it is unlikely to block follicles or worsen congestion. This makes it suitable for people who are prone to acne or frequent breakouts.
Keep in mind that the overall pore-friendliness of a finished product depends on the entire formula. If the ferment is blended with thick occlusives or rich plant butters, the product’s real-world comedogenicity could be higher.
Summary
Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate works as a skin-conditioning and emollient agent. Fermentation breaks down the plant’s larger antioxidant molecules into smaller fragments that are easier for skin to drink in, while the probiotic culture adds extra peptides and moisturizing sugars. The result is a light hydrating liquid that calms irritation, reinforces the moisture barrier and leaves skin feeling soft and balanced.
Although not as famous as galactomyces or bifida ferment, this ingredient has a quiet following within K-beauty circles and is starting to appear in global indie formulas that highlight gentle botanicals.
Current data shows the filtrate is low risk for most users when properly preserved. Still, everyone’s skin has its quirks, so it is wise to do a small patch test before committing to any new product containing this ferment.