What is Lactobacillus Ferment?
Skin conditioning
Lactobacillus Ferment is a skin conditioner that helps soften and smooth the surface.
This ingredient is listed in CosIng, the EU's cosmetic ingredient database. CosIng lists what it's used for as: Skin conditioning.
CosIng function classes are the EU's standard list of the jobs an ingredient does inside a product, such as moisturizing, emulsifying, or preserving.
Anything to watch out for?
Some products' ingredient lists mark this ingredient as below. If a mark's reason fits your skin, it is the ingredient to weigh in those products.
- This is a fungal-acne trigger, one of the ingredients people with fungal acne avoid.
- Marked this way on 172 products.
Each mark comes from matching the product's full ingredient list against lists for fragrance, labeled fragrance allergens, drying alcohols, essential oils, fungal acne, pore clogging, and pregnancy caution.
Which products feature it?
39 of the 2320 products we've checked feature this as a key ingredient. Products that disclose a concentration or list it near the top of the ingredient list come first.
Showing 1 to 12.

PURIPIA
Metabiome Toner Pad
It's registered in Korea as a functional cosmetic for brightening and wrinkle improvement.
Key: Lactobacillus Ferment (#1 on the ingredient list), Streptococcus Thermophilus Ferment, Yeast Ferment
49 claims, summarized
- You can expect:
- a brighter skin tone · less visible dark spots · softer-looking fine lines · better hydration
- Only partly backed:
- firmer skin · a smoother skin texture
- Tests passed:
- skin irritation
See each claim
claims, checked
Probiotic Ferment Blend of Fermented Active Ingredients
backed by evidenceDull and dark complexion skin brightness improvement 1.38%
backed by evidenceImprovement of bumpy skin unevenness and skin texture 7.03%
backed by evidence1. A total of 30 test subjects completed the test.
backed by evidenceTest product Furipia Metabiome Toner Pad / Skin irritation index 0.000 / Judged non-irritating
backed by evidenceWhitening ,wrinkle improvement dual functionality
backed by evidenceSTEP 1. Moisture care that builds the skin barrier / Attach the pad to skin concern areas such as both cheeks, forehead, and butterfly zone for 5 minutes or more for soothing care.
backed by evidenceSTEP 2. Daily care that completes skin texture / Gently wipe the entire face with embossed cotton to remove dead skin cells and skin impurities.
backed by evidenceFeels like skin heat and redness are reduced 70%
plausible, not testedFeels that dead skin cells decrease and makeup adheres better 61%
plausible, not testedFeels like the face is livelier and skin tone is brighter 91%
plausible, not testedCERT CLEAN Canadian international certification based on 1,220 chemical components
plausible, not testedFor products that touch skin, safer, official Korea Vegan certification
plausible, not testedTransparent container / No separate pigments or processing added to increase recycling separation rate.
plausible, not testedWater-separable label / After separating along the guide line on the container's label, it can be easily disposed of as general waste.
plausible, not tested[Elasticity·Moisture·Whitening] All-in-One Care Solution
partly backedHuman Non-Irritation Test Completed
partly backedMoisturizing improvement efficacy 92.97% moisture barrier improvement
partly backedDull, dark skin tone brightness improvement
partly backedImmediate moisture improvement +13.2%
partly backedImmediate soothing improvement +70.39%
partly backedMoisture barrier improvement +92.97%
partly backedReal skin changes that 20 people were satisfied with
partly backedRough and flaky skin moisture barrier improvement 92.97%
partly backedImmediate soothing relief for skin reddened by irritation 70.39%
partly backedImprovement of dead skin cells on peeling and rough skin 60.53%
partly backedSolving elasticity + moisture + whitening with one pad
partly backedPerfect defense against moisture loss with 3 rapid-soothing ingredients: Allantoin + Panthenol + Ceramide
partly backedSafe even for sensitive skin, irritation index 0.00, human non-irritation judgment
partly backedA pad proven by testing that even sensitive skin can use daily with peace of mind
partly backedSkin dead skin cell improvement +61.53%
overstatedHelps maintain moist skin condition without dryness or tightness 132%
overstatedSkin improvement effects proven by safe and reliable clinical tests
overstatedHwahae #1 Probiotic Pad
no supporting source foundA fundamentally different skin change created by 10 types of probiotic lactic acid bacteria
no supporting source foundContains patented Metabiome ingredient, a microbiome complex for a strong moisture barrier
no supporting source foundPatented METABIOME that catches elasticity and moisture at once
no supporting source foundA ferment isolated and identified from 3 types of probiotics – green tea flower + Jeju nuruk + white magnolia – helps skin moisturizing and soothing balance
no supporting source found7 types of Lactobacillus, each isolated and identified from a different plant, help with moisture filling and nutrition supply
no supporting source foundFuripia's exclusive microbubble technique makes the skin barrier sturdier
no supporting source foundWith a rigorous patented method, without destroying ingredients, deeply and quickly into the skin
no supporting source foundMinimizes destruction of active ingredients with very fine bubbles of 50μM or less
no supporting source foundThe real change made by the skin barrier when the skin's inherent power is awakened
nothing specific to checkSynergy of 3 rapid-soothing ingredients that perfectly defend against moisture loss, completing makeup-friendly skin condition
nothing specific to checkGood ingredients for skin UP, harmful ingredients for skin DOWN
nothing specific to checkThe core essence of youthful skin, one bottle intact!
nothing specific to checkSkin sensitive to weather conditions
nothing specific to checkSkin that looks rough and lacks elasticity
nothing specific to checkSkin that looks uneven in texture and feels tight
nothing specific to check
It's registered in Korea as a functional cosmetic for wrinkle improvement.
Key: Lactobacillus Ferment (#2 on the ingredient list), Opuntia Ficus-Indica Stem Extract, Adenosine
2 claims, summarized
- You can expect:
- softer-looking fine lines
- Only partly backed:
- better hydration
See each claim
claims, checked
Functionality: Wrinkle improvement
backed by evidenceA high-moisture essence toner that fills dry skin with moisture and nutrients to boost skin condition
plausible, not tested
Dong-A Pharmaceutical
Acne Pro Cream
Key: Lactobacillus Ferment (#3 on the ingredient list), Niacinamide, Zinc PCA
1 claim checked
claims, checked
Acne Pro
plausible, not tested
It's registered in Korea as a functional cosmetic for wrinkle improvement.
Key: Lactobacillus Ferment (#3 on the ingredient list), Panthenol, Betaine
34 claims, summarized
- You can expect:
- softer-looking fine lines
- Only partly backed:
- less visible pores · better hydration · better barrier support · firmer skin
- Don't count on:
- a brighter skin tone
- Free of:
- the ingredients it lists
- Tests passed:
- hypoallergenic · non-comedogenic · skin irritation
See each claim
claims, checked
No artificial fragrance or colorants added, fragrance-free / colorless
backed by evidence8 types of chemical ingredients not added: artificial color, artificial fragrance, paraben, benzophenone, phenoxyethanol, triethanolamine, MIT/CMIT, silicone oil
backed by evidenceWrinkle improvement functional cosmetic
backed by evidenceRefreshing and moisturizing texture
plausible, not testedIn 2 weeks, pore improvement effect 100%, wrinkle count 35% improvement
partly backedSuitable for acne & sensitive skin
partly backedLow irritation test, non-irritating certified
partly backedLactobacillus ferment, antioxidant and moisturizing help 53,000ppm
partly backedPanthenol, barrier strengthening and regeneration help 10,000ppm
partly backedBetaine moisture retention and barrier strengthening help 5,000ppm
partly backedAdenosine wrinkle improvement and elasticity help 400ppm
partly backedMadecassoside soothing and regeneration help 100ppm
partly backedPore area 47% improvement · pore volume 51% improvement · pore count 37% improvement
partly backedWith just 2 weeks of use, wrinkle improvement: wrinkle count 35% improvement, wrinkle depth 19% improvement, wrinkle width 12% improvement
partly backedSuitable for acne-prone skin, non-comedogenic test
partly backedSensitive skin irritation level 0.00
partly backedClinically proven overwhelming pore improvement ability
overstatedIndustry's first Cica Exosome 100,000 PPM high-content ampoule cream
no supporting source foundJapan sales volume 100,000 breakthrough event!
no supporting source foundGangnam dermatology clinic No. 1 cream
no supporting source foundBrand stocked in Gangnam's large dermatology and plastic surgery clinics
no supporting source foundDermatologist testing completed
no supporting source foundCica Exosome content No. 1
no supporting source foundContains over 200 times more Cica & Exosome compared to other products
no supporting source foundActive Cica Exosome helps skin collagen production and restores cells.
no supporting source foundExosome particles 462 times smaller than pores naturally penetrate deep into the skin down to the dermis layer.
no supporting source foundMoisture that fills instantly upon application, elasticity that awakens
no supporting source foundUpon one use, skin texture improvement up to 15.3%
no supporting source foundUpon one use, skin tone brightness improvement up to 6.4%
no supporting source foundAll ingredients EWG Green grade
no supporting source found12EST ampoule cream highly praised even in Japan
nothing specific to checkA bottle of high-concentration exosome ampoule in one jar of cream
nothing specific to checkA firm lifting formula that stops skin time
nothing specific to checkAchieve flawless porcelain skin with daily glow care
nothing specific to check
Key: Lactobacillus Ferment (#4 on the ingredient list), Malus Domestica Fruit Water, Malus Domestica Fruit Extract
2 claims checked
claims, checked
Red Apple Lacto
backed by evidenceEmergency Calming
plausible, not tested
Key: Lactobacillus Ferment (#6 on the ingredient list), Camellia Sinensis Leaf Water, Camellia Sinensis Leaf Extract
Key: Lactobacillus Ferment (#7 on the ingredient list), Collagen, Glycosaminoglycans
Key: Lactobacillus Ferment (#7 on the ingredient list), Pyrus Malus (Apple) Fruit Water, Salicylic Acid
Key: Lactobacillus Ferment (#7 on the ingredient list), Pyrus Malus (Apple) Fruit Water, Pyrus Malus (Apple) Fruit Extract
1 claim checked
claims, checked
#SkinBarrierStrengthening #RednessSoothing
partly backed

CELORABY
4GF Derma Repair Hydro Serum
Key: Lactobacillus Ferment (#8 on the ingredient list), Sh-Oligopeptide-1, Sh-Polypeptide-1
4 claims checked
claims, checked
4GF Derma Repair Hydro Serum
partly backed🥇 Expert recommendation, exclusive serum for Apgujeong Dermatology & Aesthetic
overstated✨ 4GF Complex specialized ingredients, high-concentration↑ formulation
no supporting source found💖 Ultimate pore-soothing care serum
no supporting source found
Key: Lactobacillus Ferment (#8 on the ingredient list), Lactobacillus Ferment Lysate, Adenosine
Key: Lactobacillus Ferment (#8 on the ingredient list), Pyrus Malus (Apple) Fruit Water, Niacinamide
1 claim checked
claims, checked
#SkinBarrierStrengthening #RednessCalming
plausible, not tested
Often featured alongside it
Are the claims about it backed up?
We checked each claim that features this ingredient. Open the list below to see the result for each one.
See the results by claim
| Result | Claims |
|---|---|
| backed by evidence | 1 of 3 |
| partly backed | 2 of 3 |
These are counts of claims, not products. One product can name the same ingredient in several claims, and we checked each one on its own.




