Good Emollient

Polyhydroxystearic Acid

INCI: POLYHYDROXYSTEARIC ACID

CAS Number
27924-99-8
Function
Dispersing agent, emulsion stabilizer, film former, viscosity controller
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR March 2023 Final Report concluded safe in cosmetics in present practices of use and concentration; max use 14.2% in lipsticks

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
low
Sensitization
none

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Safe dispersing agent with CIR 2023 safe as used conclusion at up to 14.2% in lipsticks; naturally derived from castor oil with high molecular weight limiting dermal absorption.

โš ๏ธ
Concern Level: Low

Frequently Asked Questions

Is Polyhydroxystearic Acid safe in cosmetics?

Safe dispersing agent with CIR 2023 safe as used conclusion at up to 14.2% in lipsticks; naturally derived from castor oil with high molecular weight limiting dermal absorption. The EU classifies Polyhydroxystearic Acid as "permitted". Safety rating: GOOD.

Is Polyhydroxystearic Acid allowed in the EU?

Polyhydroxystearic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Polyhydroxystearic Acid do in cosmetics?

Polyhydroxystearic Acid functions as: Dispersing agent, emulsion stabilizer, film former, viscosity controller. It is classified as a Emollient in our database. CAS number: 27924-99-8.

What is the Margin of Safety for Polyhydroxystearic Acid?

not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

๐Ÿ“ฑ

Is Polyhydroxystearic Acid in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Polyhydroxystearic Acid in your formulation.