What Is Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate?
Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate is a fermented plant oil extract that comes from Saururus chinensis, also called Asian lizard’s tail. To create it, producers press oil from the whole plant, then let two friendly microbes, Kluyveromyces yeast and Lactobacillus bacteria, ferment that oil. During fermentation the microbes break large molecules into smaller ones and enrich the mixture with peptides, amino acids and organic acids. The finished filtrate holds antioxidants, mild exfoliating acids and soothing plant compounds in a water-like liquid that blends well into modern skin care.
Fermentation of botanical oils has roots in traditional Korean beauty where it was valued for improving skin feel and shelf life. As cosmetic labs searched for gentle yet effective actives, they adopted this method to boost the potency of herbs like Saururus chinensis. Today the filtrate is made in controlled tanks, followed by micro-filtration to remove the microbes themselves, leaving a clear stable ingredient ready for use.
You will most often spot Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate in brightening serums, anti-aging creams, sheet masks, lightweight lotions, eye treatments and post-sun soothing gels. Formulators like it because it offers several skin benefits without a heavy or greasy feel.
Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate’s Cosmetic Benefits/Uses
This multitasking ferment can improve a formula in more than one way:
- Antioxidant – Helps neutralize free radicals from UV light and pollution which may slow visible signs of aging and support overall skin health
- Astringent – Provides a mild tightening sensation that can temporarily refine the look of pores and reduce excess surface oil giving skin a smoother appearance
- Bleaching – Contributes to a brighter tone by reducing the look of dark spots and uneven pigmentation when used regularly
- Skin Conditioning – Supplies lightweight hydration and softening agents that leave skin feeling smooth supple and comfortable
Who Can Use Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate
This ferment filtrate suits most skin types including oily, combination, normal and dry because it delivers light hydration without heaviness while helping control excess oil. Sensitive skin usually tolerates it well thanks to its gentle profile, though anyone with a known yeast or probiotic allergy should approach with caution.
The ingredient is plant based and produced through microbial fermentation so it contains no animal derived substances, making it suitable for vegans and vegetarians.
No data links the filtrate to hormonal effects or other risks for pregnant or breastfeeding women. It is generally viewed as low concern since it is applied topically and used at low levels in finished products. This is not medical advice and anyone who is pregnant or nursing should show the full product label to a health professional before using it, just to be safe.
The filtrate is not known to cause photosensitivity. Still, because many brightening routines already include daily sunscreen, pairing this ingredient with broad spectrum SPF is a good habit for overall skin health.
Potential Side Effects/Adverse Reactions
Reactions to topical Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate differ from person to person. The issues listed below are only potential side effects and most users will not experience them when the ingredient is included correctly in a product.
- Mild redness or stinging in very sensitive skin, especially on first use
- Allergic contact dermatitis in people who are allergic to yeast, lactic acid bacteria or Saururus chinensis
- Dryness or a tight feeling if layered with multiple astringent or exfoliating products
- Increased irritation when combined with highly acidic treatments or strong retinoids
If you notice any persistent burning, swelling or rash stop using the product and consult a healthcare professional.
Comedogenic Rating
Rating: 1/5
The filtrate is mostly water-soluble and lightweight so it does not sit on the skin in a thick film that could block pores. It lacks the heavier fatty acids that often raise a score. A small amount of residual plant oil may remain after fermentation but it is minimal which keeps the overall rating very low.
This makes the ingredient generally suitable for people who are prone to acne or breakouts.
As with any ferment, the finished product formula matters; pairing the filtrate with heavy butters or occlusive waxes can raise the pore-clogging risk of the final product even if the filtrate itself stays low.
Summary
Kluyveromyces/Lactobacillus/Saururus Chinensis Oil Ferment Filtrate works as an antioxidant, astringent, brightening and skin-conditioning agent. Fermentation breaks the plant oil into smaller bioactive pieces that can mop up free radicals, lightly tighten skin, fade the look of spots and leave the surface smooth and hydrated.
While not yet as famous as niacinamide or vitamin C, it has a growing following in K-beauty inspired serums and masks because it offers multiple benefits with a fresh non-greasy feel.
Current safety data shows a low risk of irritation or systemic effects when used as directed. As with any new skincare step it is wise to patch test first to be sure your skin agrees with it.