- beauty
- industrial
- pharma
Ursodiol
CAS 108609-27-4
Also registered as 4 other CAS numbers
50809-41-1 · 80225-86-1 · 2599839-20-8 · 128-13-2
Concern score
Not assessed — no hazard data yet.
Ursodiol in plain language
Also known as Ursodeoxycholic acid · 3.ALPHA.,7.BETA.-DIHYDROXY-5B-CHOLAN-24-OIC acid · 3alpha,7beta-Dihydroxy-5beta-cholan-24-oic acid · Actigall · Udca · Ursodeoxycholate
Show all 26 names
Ursodesoxycholic acid · (3alpha,5beta,7beta)-3,7-dihydroxycholan-24-oic acid · (3α,5β,7β)-3,7-Dihydroxycholan-24-oic acid · 17β-(1-Methyl-3-carboxypropyl)etiocholane-3α,7β-diol · 3α,7β-Dihydroxy-5β-cholan-24-oate · Acido ursodeoxicolico · Acidum ursodeoxycholicum · Cholan-24-oic acid, 3,7-dihydroxy-, (3alpha,5beta,7beta)- · Cholan-24-oic acid, 3,7-dihydroxy-, (3α,5β,7β)- · Cholan-24-oic acid, 3,7-dihydroxy-, 3-α, 5-β, 7-β)- · Cholan-24-oic acid, 3,7-dihydroxy-, (3α,5β,7β)- · Deoxyursocholic Acid · Deursil · Urso · Ursonorm · Ursacholic Acid · Urso 250 · Urso Forte · Ursocholic acid, deoxy- · acide ursodeoxycholique
Used in cosmetics as a skin-conditioning agent and a skin protectant.
- Skin conditioning
- Skin protecting
- Humectant
- Conditioner
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. Ursodiol appears in these published regulatory listings.
- In marketed US drugs
- Found in consumer products
- Industrial
EUCosIngActiveUrsodiol is the organic compound
- Ursodiol is the organic compoundSource →
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Humectant, Softener and conditioner.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Humectant, Softener and conditioner.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 49 active drug products and 51 total products.
- FDA NDC lists this ingredient in 49 active drug products and 51 total products.Source →
Expert safety opinions
No expert opinion on file for Ursodiol. 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 Ursodiol yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
- Open →
CosIng
regulatory · updated 2026-09-23
- Open →
EPA Chemical and Products Database
exposure · updated 2020-08-31
- Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
- Open →
FDA National Drug Code Directory
regulatory · updated 2027-12-31
- Open →
FDA GSRS UNII
registry · updated 2026-02-26
- Open →
openFDA Substance
registry · updated 2026-05-24
- Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Reference links (2)
accessdata.fda.gov
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Fragrance avoidance
Nothing to weigh for this context yet.
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.
Where it has been recorded
How often FDA National Drug Code directory has listed Ursodiol in a product composition. These are source records, not Greenveil catalog products.
Source records
51
Typical roles
Skin conditioningSkin protectingHumectantConditioner