Ingredient glossary
Peppermint Oil
INCI: Mentha Piperita Oil
Popular on labels, but the evidence for what it actually does is thin. More marketing than muscle.
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.