Lactobacillus Reuteri

INCI: LACTOBACILLUS

CAS Number
2134-29-4
Function
Ferment / Probiotic ingredient
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
EU Max Conc. 11%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR Assessment (2025): The Expert Panel for Cosmetic Ingredient Safety concluded that Lactobacillus Ferment (and three related derivatives) are safe as used in cosmetics.

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Lactobacillus Reuteri is generally considered safe for use as a cosmetic ingredient.

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Concern Level: Low

Frequently Asked Questions

Is Lactobacillus Reuteri safe in cosmetics?

Lactobacillus Reuteri is generally considered safe for use as a cosmetic ingredient. The EU classifies Lactobacillus Reuteri as "permitted". Safety rating: GOOD.

Is Lactobacillus Reuteri allowed in the EU?

Lactobacillus Reuteri EU regulatory status: permitted. Maximum allowed concentration: 11%. This is based on EU Regulation 1223/2009 and its amendments.

What does Lactobacillus Reuteri do in cosmetics?

Lactobacillus Reuteri functions as: Ferment / Probiotic ingredient. It is classified as a Cosmetic Ingredient in our database. CAS number: 2134-29-4.

What is the Margin of Safety for Lactobacillus Reuteri?

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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