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BUTYRIS LAC POWDER

CAS -
82

Safety score · 0–100

Good

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

About

Dehydrated buttermilk powder derived from cow's milk, rich in lactic acid and milk proteins used for skin conditioning and mild exfoliation.

Buttermilk powder is a food-grade dairy byproduct with no specific restrictions under EU cosmetics Regulation 1223/2009. It contains lactic acid (authorised), milk proteins and milk fats. As a dairy ingredient it must be labelled as a potential allergen (milk) in finished cosmetic products. Lactic acid itself is restricted in nail products but unrestricted for skin applications.

Skin benefits

  • Lactic acid provides mild chemical exfoliation
  • Milk proteins may support skin barrier function
  • Natural moisturising factor components hydrate skin

Known concerns

  • Milk allergen — must be declared on finished product label
  • Risk of microbial contamination if powder is not properly preserved

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.