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Emollient

METHYL STEARIC ACID

CAS 17001-28-4 Updated
80

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

A methyl-branched stearic acid (CAS 17001-28-4) used as an emollient and consistency-builder. Inherits the strong safety record of stearic acid — well-tolerated and non-sensitising in normal cosmetic use.

Function

SKIN CONDITIONING

Skin benefits

  • Softens and conditions skin
  • Builds emulsion viscosity
  • Improves spreadability

Known concerns

  • Heavy feel possible on oily skin
  • Limited isomer-specific data

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.