Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate

INCI: LACTOBACILLUS/SACCHAROMYCES/USNEA LONGISSIMA FERMENT FILTRATE

CAS Number
Not assigned
Function
Skin Conditioning, Antimicrobial
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€” no specific 21 CFR restriction

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
moderate
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Usnic acid from lichen source is hepatotoxic orally and a known contact allergen dermally; fermentation may not reduce usnic acid levels and must be quantified via HPLC; lichen-derived ingredients carry higher sensitization risk; requires HRIPT or equivalent patch test data specific to this filtrate; insufficient data for confident safety conclusion without additional testing.

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Concern Level: High

Regulatory Flags

potential-allergen

Frequently Asked Questions

Is Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate safe in cosmetics?

Usnic acid from lichen source is hepatotoxic orally and a known contact allergen dermally; fermentation may not reduce usnic acid levels and must be quantified via HPLC; lichen-derived ingredients carry higher sensitization risk; requires HRIPT or equivalent patch test data specific to this filtrate; insufficient data for confident safety conclusion without additional testing. The EU classifies Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate as "permitted". Safety rating: MODERATE.

Is Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate allowed in the EU?

Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate do in cosmetics?

Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate functions as: Skin Conditioning, Antimicrobial. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned.

What is the Margin of Safety for Lactobacillus/Saccharomyces/Usnea Longissima Ferment Filtrate?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

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