Hydroxypropyl Dimethicone Stearate

INCI: HYDROXYPROPYL DIMETHICONE STEARATE

CAS Number
Not uniquely assigned (silicone stearate ester)
Function
Skin conditioning agent — emollient, hair conditioning
Safety Rating
GOOD

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted — CIR dimethiconol and ester review: safe as used

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
negligible
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

Hydroxypropyl dimethicone stearate is permitted in cosmetics with safety profile comparable to other hydroxypropyl dimethicone esters, though D4/D5 impurity concerns warrant monitoring.

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Concern Level: Low

Frequently Asked Questions

Is Hydroxypropyl Dimethicone Stearate safe in cosmetics?

Hydroxypropyl dimethicone stearate is permitted in cosmetics with safety profile comparable to other hydroxypropyl dimethicone esters, though D4/D5 impurity concerns warrant monitoring. The EU classifies Hydroxypropyl Dimethicone Stearate as "permitted". Safety rating: GOOD.

Is Hydroxypropyl Dimethicone Stearate allowed in the EU?

Hydroxypropyl Dimethicone Stearate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Hydroxypropyl Dimethicone Stearate do in cosmetics?

Hydroxypropyl Dimethicone Stearate functions as: Skin conditioning agent — emollient, hair conditioning. It is classified as a cosmetic ingredient in our database. CAS number: Not uniquely assigned (silicone stearate ester).

What is the Margin of Safety for Hydroxypropyl Dimethicone Stearate?

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.

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