What does Bile acids do?

Used in cosmetics as an emulsifier, a skin-conditioning agent and a skin protectant. Bile Acids are the steroid acids synthesized in the liver of mammals, or produced through microbial fermentation.

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

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Bile acids

Concern score

Not assessed — no hazard data yet.

Bile acids in plain language

What it does: Used in cosmetics as an emulsifier, a skin-conditioning agent and a skin protectant. Bile Acids are the steroid acids synthesized in the liver of mammals, or produced through microbial fermentation.
Emulsifying
Skin conditioning
Skin protecting
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

What we know about this ingredient

Canonical ingredient record built from 1 public-source records.

Regulation

No restrictions found. Bile acids appears in these published regulatory listings.

EUCosIngActiveBile Acids are the steroid acids synthesized in the liver of mammals, or produced through microbial fermentation. Restriction: Please consider whether entry 419 of Annex II to the Cosmetics Regulation 1223/2009 is applicable. According to entry 419, category 1 material and Category 2 material as defined in Articles 4 and 5 respectively of Regulation (EC) No 1774/2002, and ingredients derived therefrom are prohibited in cosmetics products. Regulation (EC) No 1774/2002 has been repealed and replaced by Regulation No. 1069/2009. For Category 1 and 2 materials in Regulation No. 1069/2009, please see Article 8 and 9, respectively.
- Bile Acids are the steroid acids synthesized in the liver of mammals, or produced through microbial fermentation. Restriction: Please consider whether entry 419 of Annex II to the Cosmetics Regulation 1223/2009 is applicable. According to entry 419, category 1 material and Category 2 material as defined in Articles 4 and 5 respectively of Regulation (EC) No 1774/2002, and ingredients derived therefrom are prohibited in cosmetics products. Regulation (EC) No 1774/2002 has been repealed and replaced by Regulation No. 1069/2009. For Category 1 and 2 materials in Regulation No. 1069/2009, please see Article 8 and 9, respectively.Source →

Expert safety opinions

No expert opinion on file for Bile acids. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Bile acids yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

1 data source

Where this comes from

CosIng
regulatory · updated 2026-09-23
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Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.