beauty
cleaning
pharma

POLYGLYCERYL-4 isostearate

CAS 91824-88-3 · 0/100 · High conf.

Concern score

0/100Low concern — well-established and permitted without restriction (CIR safe when formulated as directed; EU CosIng).

High confidence

POLYGLYCERYL-4 isostearate in plain language

What it is: Also known as POLYGLYCERYL-4 monoisostearate · Tetraglyceryl monoisostearate · Aec POLYGLYCERYL-4 isostearate · Isolan gi 34 · POLYGLYCERYL-4-ISOSTEARATE
What it does: Used in cosmetics as an emulsifier.
Emulsifying
Emulsifier
Surfactant
Conditioner
Is it a concern?: Low concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA CPDat observed this chemical in 938 composition records across product categories including Personal care, Cleaning products and household care.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. POLYGLYCERYL-4 isostearate appears in these published regulatory listings.

In marketed US drugs

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

EUCosIngActive1,2,3-Propanetriol, homopolymer, isooctadecanoates (1:1) (4 mol glycerol average molar ratio)
- 1,2,3-Propanetriol, homopolymer, isooctadecanoates (1:1) (4 mol glycerol average molar ratio)Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 938 composition records across product categories including Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Emulsifier, Softener and conditioner, Surfactant (surface active agent).
- EPA CPDat observed this chemical in 938 composition records across product categories including Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Emulsifier, Softener and conditioner, Surfactant (surface active agent).Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 1 drug products and 1 package presentations.
- FDA NDC lists this ingredient in 1 drug products and 1 package presentations.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as polymer.
- openFDA substance registry classifies this ingredient as polymer.Source →

Expert safety opinions

No expert opinion on file for POLYGLYCERYL-4 isostearate. 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 POLYGLYCERYL-4 isostearate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated September 2018
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA National Drug Code Directory
regulatory · updated 2026-10-20
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →

Suitability

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

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed POLYGLYCERYL-4 isostearate in a product composition. These are source records, not Greenveil catalog products.

Source records

938

Named organisations

Personal careCleaning products and household care

Typical roles

EmulsifyingEmulsifierSurfactantConditioner

See products using POLYGLYCERYL-4 isostearate →

Catalog

Found in these products

Their ingredient lists include POLYGLYCERYL-4 isostearate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 78 →Find products without it →