Menthol

Menthol is a natural compound obtained from mint oils or produced synthetically. It has a characteristic minty smell and cooling sensation, and is widely used in cosmetics, food, and medicine for its therapeutic properties.

History

Menthol was first isolated from peppermint oil in 1771 by Hieronymus David Gaubius. It was initially used in the treatment of gastrointestinal disorders, but its uses have since expanded to include a wide range of applications in pharmaceuticals and cosmetics.

Properties

Menthol is a waxy, crystalline substance that is clear or white in color. It is soluble in alcohol and propylene glycol, but not in water. It has a melting point of 31-36 degrees Celsius.

Uses

Menthol is used in a variety of products for its cooling and soothing properties. It is a common ingredient in cough drops, toothpaste, and pain relief creams. It is also used in cigarettes to provide a minty flavor and reduce the harshness of the smoke.

Health effects

Menthol has been shown to have analgesic, antipruritic, and anti-irritant effects. It is used in medicine to soothe sore throats, reduce inflammation, and relieve minor aches and pains. However, it can also cause skin irritation and allergic reactions in some people.

See also

• Mint (plant)
• Peppermint
• Eucalyptus oil
• Camphor

References

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