Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment

INCI: LACTOBACILLUS/STREPTOCOCCUS THERMOPHILUS/SOYBEAN EXTRACT FERMENT

CAS Number
Not assigned (UVCB; CosIng listed)
Function
Skin conditioning
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — no CFR restriction; MoCRA listing applies

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Soy allergen risk present; soy isoflavones are phytoestrogens with potential endocrine activity at high concentrations. CIR found no endocrine effect for parent Lactobacillus ferment at ≤10,000 µM, but soy substrate adds estrogenic compounds. Whole ferment form retains dead bacteria; no genotoxicity or reproductive data available for this specific combination.

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Concern Level: Moderate

Regulatory Flags

plant-extract potential-allergen

Frequently Asked Questions

Is Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment safe in cosmetics?

Soy allergen risk present; soy isoflavones are phytoestrogens with potential endocrine activity at high concentrations. CIR found no endocrine effect for parent Lactobacillus ferment at ≤10,000 µM, but soy substrate adds estrogenic compounds. Whole ferment form retains dead bacteria; no genotoxicity or reproductive data available for this specific combination. The EU classifies Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment as "permitted". Safety rating: MODERATE.

Is Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment allowed in the EU?

Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment do in cosmetics?

Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment functions as: Skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: Not assigned (UVCB; CosIng listed).

What is the Margin of Safety for Lactobacillus/Streptococcus Thermophilus/Soybean Extract Ferment?

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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