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Mint in cosmetics is the source of one of the most immediate sensations a product can provide. But under the same name are different species and different forms of extraction, and those determine whether you are using a face or body active ingredient.
Article written by Elisa Avalle, founder of LeLang Skin Care and a dermocosmetics specialist. Cover image generated with the support of artificial intelligence.
Where the sensation of freshness comes from
Menthol does not lower the skin's temperature: it activates the receptors that respond to cold, the same ones that are triggered by a cold draft. The brain receives a cold signal that does not correspond to any actual change.
That is why the effect is instant and short-lived: a few minutes, as long as the menthol remains in contact with the skin. It is also why, above a certain concentration, the same nerve pathway produces burning instead of freshness.
Three different forms on the label
Mentha Piperita Oil is peppermint essential oil, obtained through distillation: highly concentrated in menthol and suitable for body treatments.
Mentha Arvensis Leaf Oil comes from field mint, the species with the highest menthol content of all - so much so that commercial menthol has traditionally been isolated from it.
Mentha Piperita Leaf Extract is something entirely different: an extract, not a distillate. It contains the water-soluble fraction of the leaf - rosmarinic acid, flavonoids, tannins - while leaving behind much of the menthol. It has the plant's purifying action without the sensory intensity and without the potential irritancy of the oil.
The practical rule: extract for the face, essential oil for the body. That is why our formulas use the extract in the purifying mask and the oil in the body scrub.
When mint makes sense
On the body, its ideal setting is treatments that accompany a massage or exfoliation: freshness is part of the gesture and enhances the perceived effectiveness. For tired legs, it is the most widely used ingredient of all, and for once, the sensation corresponds to a real mechanism.
On the face, the extract is included in formulas for combination and shiny skin, where it works alongside clays and sebum-regulating active ingredients.
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Frequently asked questions about mint
Can peppermint essential oil be used undiluted?
No, never. It is one of the most concentrated essential oils, and undiluted it can cause burning and irritation even on non-reactive skin. It should always be diluted, as explained in the essential oils guide.
Is it suitable for the eye contour?
No. Menthol is volatile and, in the eye area, can reach the mucous membranes, causing watering and burning.
Can it be used on children?
Menthol-rich essential oils are not recommended for young children because of the risk of respiratory reactions. Only products formulated for that age group should be used.
Does mint tighten pores?
The sensation of firmer skin is linked to a temporary astringent effect. Pore size depends on the structure of the follicle and does not change.
Is it really useful for swollen legs?
The perceived relief is real and comes from the activation of cold receptors. However, persistent swelling or swelling accompanied by other symptoms should be referred to a doctor: that is not a cosmetic concern.
