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Bulking Agent

ZINC STEARATE

CAS 557-05-1
80

Safety score · 0–100

Good

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

Zinc stearate — a soft metal soap used for slip and adhesion in pressed powders. Safe on skin; avoid inhaling loose-powder forms.

Function

ANTICAKINGCOLORANTVISCOSITY CONTROLLINGSLIP MODIFIER

Skin benefits

  • Adds slip and adhesion to powder makeup
  • Mild skin-conditioning
  • Opacifier and anti-caking agent
  • Long USP/cosmetic track record

Known concerns

  • Inhalation concern in loose powders (respiratory irritation)
  • Not a skincare active
  • Metal soap class

References

EU

EU CosIng database

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

PC

PubChem

U.S. NIH compound data, GHS hazard codes and toxicity literature.

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