Is Lactobacillus Reuteri safe in cosmetics?
Lactobacillus Reuteri has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
GOOD
Cosmetic Ingredient
Lactobacillus Reuteri
Also known as: EINECS 218-365-1, 3-Hydroxypropanal
INCI: LACTOBACILLUS
Lactobacillus Reuteri (CAS 2134-29-4) is a cosmetic cosmetic ingredient functioning as Ferment / Probiotic ingredient. EU Regulation 1223/2009 status: permitted, max 11%. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.
Function
Ferment / Probiotic ingredient
Editorial assessment
GOOD
Preliminary editorial note — not a computed safety verdict.
Chemistry & Identifiers
IUPAC Name
3-hydroxypropanal
InChIKey
AKXKFZDCRYJKTF-UHFFFAOYSA-N
Regulatory Status
EU EU Status
permitted
EU Max Conc.
11%
US 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 multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Lactobacillus Reuteri.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Lactobacillus Reuteri — not a computed safety verdict. See the sourced toxicological data above.
Known Synonyms
EINECS 218-365-1
3-Hydroxypropanal
Frequently Asked Questions
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.
Is Lactobacillus Reuteri used outside cosmetics?
Lactobacillus Reuteri also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
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Substance Compliance
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MoS Calculator
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