Menthol is a naturally occurring or synthetic compound derived from mint oils that produces a cooling sensation by activating TRPM8 receptors on the skin. It is used in topical products for its soothing, mild analgesic, and antipruritic effects.
| Reported effect | How often | Notes |
|---|---|---|
| Skin irritation or burning sensation | Common | Transient tingling, stinging, or burning, especially at higher concentrations or on broken skin. |
| Contact dermatitis | Uncommon | Irritant or allergic dermatitis with redness and itching in sensitive individuals. |
| Allergic contact sensitization | Rare | Documented but infrequent true menthol allergy confirmed by patch testing. |
| Systemic toxicity from excessive application | Very rare | Reported mainly with very high concentrations or large-area use; not typical of normal cosmetic use. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.