What Is Lactococcus/Bean Seed Extract Ferment Filtrate?
Lactococcus/Bean Seed Extract Ferment Filtrate is a naturally derived cosmetic ingredient obtained by fermenting mung bean (Phaseolus radiatus) seed extract with the probiotic bacterium Lactococcus. The fermentation process breaks down the bean’s proteins, sugars and antioxidants into smaller, more bio-available molecules, resulting in a lightweight liquid rich in peptides, amino acids, vitamins and organic acids. First explored by Korean formulators looking to harness probiotics for healthier skin and hair, it quickly gained traction throughout Asia before being adopted by global brands focused on gentle, plant-based actives.
Production starts with an aqueous extract of mung bean seeds. Lactococcus cultures are introduced under controlled temperature and pH, allowing the microbes to metabolize the extract for several days. After fermentation the mixture is filtered to remove cellular debris, leaving a clear filtrate that is then standardized and preserved for cosmetic use.
You will most often see this ferment filtrate in lightweight moisturizers, soothing masks, balancing toners, scalp treatments, clarifying shampoos and leave-in conditioners. Its multitasking profile makes it a favorite in products aimed at oil control, barrier support and microbiome-friendly care.
Lactococcus/Bean Seed Extract Ferment Filtrate’s Cosmetic Benefits/Uses
This multitasking ferment offers several useful actions when included in skin or hair formulas
- Anti-Seborrheic: Helps regulate excess sebum on skin and scalp which can reduce shine, clogged pores and greasy roots
- Antimicrobial: Creates an environment that is less welcoming to unwanted bacteria and fungi supporting a clearer complexion and a healthier scalp
- Hair Conditioning: Deposits lightweight proteins and humectants that improve softness, manageability and overall hair feel without added weight
- Skin Conditioning: Provides amino acids and sugars that boost hydration, reinforce the skin barrier and leave the surface feeling smooth and comforted
Who Can Use Lactococcus/Bean Seed Extract Ferment Filtrate
This ferment filtrate is generally suitable for all skin types including oily, combination, normal, dry and even sensitive skin thanks to its lightweight texture and soothing profile. Those with very dry skin may want to pair it with richer emollients since it is not an occlusive ingredient. People who have a known allergy to legumes such as mung beans should avoid it because the base extract comes from that plant family.
The ingredient is derived from a plant extract and a food grade probiotic bacterium so it fits vegan and vegetarian lifestyles with no animal by-products involved in production.
No data suggest it poses a risk for women who are pregnant or breastfeeding when used topically. Still, this is not medical advice and anyone who is pregnant or nursing should ask a healthcare professional before adding new skincare products, just to be safe.
Lactococcus/Bean Seed Extract Ferment Filtrate is not known to increase photosensitivity so there is no special need for extra sun precautions beyond daily sunscreen habits.
Potential Side Effects/Adverse Reactions
Responses to topical Lactococcus/Bean Seed Extract Ferment Filtrate can vary by individual. The effects listed below are potential reactions only and most users will not encounter them when the ingredient is formulated and used correctly.
- Redness or mild irritation in very sensitive skin
- Itching or transient stinging upon application
- Allergic contact dermatitis in individuals allergic to legumes
- Rare follicular breakouts if the finished product contains comedogenic co-ingredients
- Scalp flaking or dryness if overused in leave-on hair products
If any of these reactions occur stop using the product and consult a healthcare professional if symptoms persist or worsen.
Comedogenic Rating
Rating: 0 out of 5
Lactococcus/Bean Seed Extract Ferment Filtrate is a water based ferment rich in small peptides, amino acids and sugars with virtually no heavy oils or waxes that could clog pores. The molecules are low in molecular weight, readily absorbed and easily rinsed, giving it a very low likelihood of blocking follicles.
This makes the ingredient generally suitable for acne prone or breakout prone skin. Its sebum balancing and mild antimicrobial properties can even complement a blemish focused routine.
Keep in mind the finished product’s overall formula matters; if it contains highly occlusive or greasy companions the final comedogenic profile may rise despite the ferment itself being non-comedogenic.
Summary
Lactococcus/Bean Seed Extract Ferment Filtrate works as an anti-seborrheic, antimicrobial, hair conditioning and skin conditioning active. By fermenting mung bean extract with Lactococcus the proteins and carbohydrates break down into bioavailable peptides, amino acids and organic acids that can help curb excess sebum, support a balanced microbiome, soften hair strands and reinforce the skin barrier.
Once a niche K-beauty addition, it is steadily gaining popularity as more brands look for gentle probiotic inspired ingredients that offer multiple benefits without heaviness.
Topical use is considered low risk for most people with only rare irritation or legume related allergy reported. As with any new cosmetic it is smart to perform a quick patch test when trying a product that contains this ferment to ensure personal compatibility.