Menthol
A terpenoid from peppermint. Activates TRPM8 cold receptors, producing a cooling sensation. Used in after-shave balms, foot products, and shampoos. Does not treat the skin – provides a sensory effect perceived as 'freshening' or 'toning'. Irritation and contact dermatitis are possible, especially above 1%.
Evidence by route
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
The TRPM8 sensory activation effect is established. No clinically significant therapeutic skin effect. Concentrations above 1% are associated with irritation and contact sensitisation. Restricted in leave-on products under IFRA guidelines.
- Bautista DM et al. Neuron. 2007;54(3):371-378.
- IFRA Standard Menthol. 2022.
Tolerability and safety
Irritation potential
MediumAllergen risk
ModeratePregnancy
CautionSkin types
Suitable for
Use with caution
Frequently asked questions
Is Menthol safe during pregnancy?
Menthol should be used with caution during pregnancy. Consulting a dermatologist or OB-GYN is advisable.
What skin types is Menthol for?
Menthol suits: normal, oily, combination. Use with caution in: sensitive, dry.
Can Menthol irritate the skin?
Menthol has moderate irritation potential. Sensitive skin may show a transient reaction that usually settles with adaptation.