Also known as: Glycols, polyethylene, ether with sorbitan monooleate, Armotan pmo-20, Drewmulse poe-smo, FEMA No. 2917, Glycosperse O-20 (+15 more)
INCI: POLYSORBATE 81
Polysorbate 81 (CAS 9005-65-6) is a cosmetic cosmetic ingredient functioning as Emulsifier (HLB ~10), surfactant (detergent), emollient. NOAEL 833.333 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety, pharmaceutical, and food safety data.
US NotesCIR: Safe as used (original 1984, reaffirmed 2015); FDA UNII: 2MSF640LWM
For full compliance data across multiple jurisdictions, use the
Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Polysorbate 81.
Calculate MoS for your specific formulation with the
MoS Calculator.
Toxicological Studies
4 study endpoints found for Polysorbate 81. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.
Endpoint
Value
Route
Species
Study Type
Source
NOAEL
1000 mg/kg bw/day
oral
monkey
Subchronic
COSMOS DB
NOAEL
5000 mg/kg bw/day
oral
rat
Chronic
COSMOS DB
NOAEL
7500 mg/kg bw/day
oral
mouse
Short Term Toxicity
COSMOS DB
NOAEL
10000 mg/kg bw/day
oral
rat
Multigeneration Reproductive
COSMOS DB
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for Polysorbate 81 across SCCS product categories, with measured dermal absorption where available.
EPA ToxValDB — Toxicity Values
10 toxicity values from EPA ToxValDB (aggregated from CCTE, HPV, ToxRefDB, IRIS, and other regulatory dossiers).
Endpoint
Value
Species
Route
Duration
Source
NOAEL
=2500 mg/kg-day
Rat
oral
chronic
EFSA
NOEL
=0.5 %
Mouse
injection
acute
ECOTOX
LEL
=7500 mg/kg-day
Mouse
oral
chronic
EPA ToxRefDB
LEL
=7500 mg/kg-day
Mouse
oral
chronic
EPA ToxRefDB
LEL
>2500 mg/kg-day
Rat
oral
chronic
EPA ToxRefDB
LEL
=2500 mg/kg-day
Rat
oral
chronic
EPA ToxRefDB
LOAEL
=7500 mg/kg-day
Mouse
oral
chronic
EPA ToxRefDB
LOAEL
=7500 mg/kg-day
Mouse
oral
chronic
EPA ToxRefDB
LOAEL
>2500 mg/kg-day
Rat
oral
chronic
EPA ToxRefDB
LOAEL
>2500 mg/kg-day
Rat
oral
chronic
EPA ToxRefDB
HRIPT Human Patch Test Studies
1 human repeat insult patch test aggregated from dermatological literature.
Test Type
N
Sensitized
Dose µg/cm²
NESIL µg/cm²
Potency
HMT
-
0
15517.24
-
-
Endocrine Disruptor Evidence (Expanded)
Cross-referenced EDC classifications, mechanism data, and dose-response evidence from EDLists, SIN List, and cosmetic-specific detail sources.
Cosmetic-Specific Mechanism
Category:surfactant
Receptor targets:ERα (limited evidence)
LOEC:100 µM
EU status:allowed
weak agonist
Additional Ingredient Properties
2 property records from structured ingredient metadata.
EmulsifierFragranceSurfactant (surface active agent)
Regulatory Lists
drinking_water; Europe; manufacturing; plastic_additiveactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesactive_ingredient; Pesticidesinert_ingredient; Pesticidesfracking; waterpharmaceuticalEurope; Personal care - body hygiene - hand soapactive_ingredient; animal_products; Europe; pharmaceutical; residueEurope; Personal care - hair styling and care - shampoo-dandruffEurope; Personal care - hair styling and care - shampoo-dandruffEurope; Personal care - hair styling and care - shampoo-dandruff
Australian Status
AICIS status:listed
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical and food safety data.
SOURCEChEMBL / DrugCentral / FAERSDB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
Polysorbate 81 has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted. 4 toxicological study endpoint(s) are available in our database.
Is Polysorbate 81 allowed in the EU?
Polysorbate 81 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Polysorbate 81 do in cosmetics?
Polysorbate 81 functions as: Emulsifier (HLB ~10), surfactant (detergent), emollient. It is classified as a cosmetic ingredient in our database. CAS number: 9005-65-6.
What is the NOAEL for Polysorbate 81?
The NOAEL (No Observed Adverse Effect Level) for Polysorbate 81 is 1000 mg/kg bw/day based on a Subchronic study via oral route in monkey. A total of 4 study endpoints are available. Source: COSMOS DB.
Is Polysorbate 81 used outside cosmetics?
Polysorbate 81 also appears in industrial chemical safety, pharmaceutical, and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Polysorbate 81 compliance across multiple jurisdictions:
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.