Menthol is a naturally occurring terpene found in plants such as spearmint and peppermint and is also found in cannabis in low quantities. Menthol is mostly known as an additive to tobacco cigarettes but is also found in many everyday products, such as cough drops, lozenges, and cough syrups. Menthol is touted as a naturally occurring compound that reduces cough and provides a refreshing, minty taste and is also an added ingredient in breast fresheners, hard candies, toothpaste, as well as a topical pain relieving ointments and gels.
According to this study published by the National Institutes of Health, the molecular action of menthol provides a cooling sensation and a reduction in pain from various painful conditions. Menthol is commonly added to salves containing CBD to provide an added soothing sensation when applied to the skin. Menthol is also shown to provide therapeutic effects as a digestive aid and can help relieve symptoms associated with irritable bowel syndrome, IBS, such as cramps, pain, and bloating. Menthol is also shown to provide antibacterial benefits and as a decongestant to improve airflow.