INCI Name
Leuconostoc/Radish Root Ferment Filtrate
Botanical Name
Raphanus sativus (radish) root fermented with Leuconostoc spp. (commonly L. kimchii).
Leuconostoc/Radish Root Ferment Filtrate is a fermentation-derived preservative made by fermenting Raphanus sativus (radish) root with Leuconostoc bacteria and filtering the broth to obtain an antimicrobial peptide-rich filtrate. It’s primarily used as a cosmetic preservative/antimicrobial. Performance is formulation-dependent—especially pH and use level—and many brands verify protection via challenge testing; some pair it with complementary systems to bolster yeast/mold coverage.
Preservative; antimicrobial.
Product Type(s):
Typical Usage Range:
2–4% typical (per INCIdecoder reference); effectiveness reported within ~pH 3.4–5.5; verify in-formula with PET. (Note: usage and pH ranges vary by supplier lot/system.)
Fermentation-derived, natural-origin preservative system used to help protect products from microbial growth (non-medical).
Primary Components:
Fermentation-derived antimicrobial peptides (bacteriocin-like), aqueous filtrate constituents (peptides/organic acids typical of lactic fermentation). (Supplier-specific composition varies.)
Efficacy depends on pH and dose; may require co-preservative for robust yeast/mold coverage; formulate to be non-sensitizing; perform preservative efficacy testing (challenge tests).
Preferred Extraction Method:
Fermentation of radish root, followed by aqueous filtration (ferment filtrate).
Request recent challenge test data and MICs; confirm recommended pH window; verify spectrum (bacteria/yeast/mold) or use blended systems (e.g., “Complete” variants) if broader coverage needed.
Explore additional safety and regulatory data from trusted external sources:
*The ingredient details on this page are intended for general educational use and should not be considered exhaustive. Additional properties, uses, or safety considerations may be available from other sources. Root & Ritual Apothecary is not affiliated with Cosmetics Info, Cosmetic Ingredient Review (CIR), INCIDecoder, SkinSafe, EWG Skin Deep, or SpecialChem. External links are provided solely for informational purposes; Root & Ritual does not control or guarantee the accuracy, methodology, or conclusions of third-party sources, including consumer rating systems such as EWG.
Leucidal Liquid
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