Evidence supporting the use of: Peppermint leaf
For the body system: Sinuses

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Synopsis

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

Peppermint Leaf and Sinus Support: Scientific Evidence

Peppermint leaf (Mentha × piperita) has a long history of use in traditional medicine, particularly for respiratory and sinus complaints. Its primary active constituent, menthol, is widely recognized for providing a sensation of improved airflow and relief in nasal congestion, which is why peppermint is commonly included in decongestant formulations and inhalants.

Scientific studies support some of these traditional uses. Inhalation of menthol has been shown to produce a subjective sensation of improved nasal airflow, although objective measures of airflow do not always confirm actual decongestion (Eccles, 2013). Peppermint's anti-inflammatory and mild antimicrobial properties may also contribute to its soothing effect on mucous membranes of the sinuses. Some research suggests that menthol and other volatile compounds in peppermint can inhibit the growth of certain pathogens that affect the respiratory tract (Nakamura et al., 2010).

Overall, while peppermint leaf and its extracts, particularly menthol, are commonly used to support sinus health and relieve congestion, the scientific evidence is moderate, mainly demonstrating symptomatic relief rather than addressing underlying causes. The effect appears to be more about perceived improvement than measurable change in sinus airflow.

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