Leuconostoc
AKA “Leuconostoc/Radish Root Ferment Filtrate
Synthetic
Ingredient Facts
Leuconostoc
AKA: Leuconostoc/Radish Root Ferment Filtrate
Synthetic · Preservative · EWG: 1
Plant-Derived Synthetic
Preservative
Skin Conditioner
Synthetic
Clean
Radish ferment extract that naturally conditions and softens skin, helping it feel smooth and supple.
CAS #
Not applicable to complex mixtures
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Preservative
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Locks in moisture
Traditional Use
A naturally fermented ingredient with no traditional historical use; developed in modern skincare during the 2000s as a probiotic and fermentation-derived preservative designed to support skin microbiome balance.
Skin Types
all-skin-types, gentle
Best For
Sensitivity
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not an Irritant
ewg-1
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
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Verified Feb 2026
Data: CosIng · EWG · CIR