Ingredient glossary

Peppermint Oil

INCI: Mentha Piperita Oil

More hype than results

Popular on labels, but the evidence for what it actually does is thin. More marketing than muscle.

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What it does

  • cooling
  • antimicrobial
  • fragrance

weak evidenceCase reports and reviews describe allergic contact dermatitis and irritant reactions to peppermint and related mentha oils in facial and mucosal use despite low typical cosmetic concentrations.

Who it's for, and who should skip it

Tends to suit

  • oily
  • normal

Approach with care

  • very sensitive
  • rosacea
  • eczema
  • fragrance allergy
  • Clogs poresModerate
  • Irritation riskModerate

Pregnancy: Check with your doctor before using during pregnancy or breastfeeding.

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Educational information about a cosmetic ingredient, not medical advice.