Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Menthol oil, derived from peppermint, has been used both traditionally and in modern medicine to support the relief of bronchial congestion. Scientifically, menthol acts as a counterirritant and has a cooling effect when inhaled, which can provide subjective relief of nasal and bronchial congestion. Several studies have investigated the effects of menthol on respiratory symptoms. Although menthol does not actually decongest airways by reducing mucus or inflammation, it can create a sensation of improved airflow in the nose and upper airways by stimulating cold receptors (TRPM8) in the nasal mucosa. This perceived relief can help patients feel more comfortable and facilitate easier breathing. Menthol is commonly found in over-the-counter products such as vapor rubs, inhalers, and lozenges. A number of clinical studies have shown that while menthol does not objectively change airway resistance, it does subjectively reduce the sensation of congestion, which is valuable in symptomatic relief. The evidence base includes randomized controlled trials and systematic reviews, though some studies note the placebo effect and call for more robust research. Overall, the scientific evidence supports menthol's use for symptomatic relief, but not as a cure for bronchial congestion. The evidence rating of 3 reflects moderate scientific support, primarily for its efficacy in symptom management rather than underlying disease modification.

More about menthol oil
More about Congestion (bronchial)

Other ingredients used for Congestion (bronchial)

Other health conditions supported by menthol oil

Products containing menthol oil

Nature's Sunshine Tei-Fu Essential Oils
Nature's Sunshine Tei-Fu® Soothing Blend