D-Limonene (Limonene)
SyntheticSafety Level
Acceptable
Max. concentration
Carcinogenicity
Allergy Factor
Category
Buffer components, Aroma
Functions
Disinfectant
Description
Limonene is a clear, colorless liquid that is the main component of citrus peel oil, including lemon, orange, tangerine, lime, and grapefruit. The name "limonene" comes from the name lemon, a citrus lemon. Limonene is used in perfumes, soaps, and other personal care products due to its pleasant aroma, penetrating abilities, and anti-inflammatory properties. Limonene has a light, fresh and sweet citrus smell. Limonene is known for its high penetration ability, especially noticeable in the skin, which is why it is called an "enhancer". The enhancing ability of limonene allows it to be used as a carrier for other molecules that are unable to overcome epithelial barriers. In fact, limonene and other terpenes are used to improve transdermal drug delivery because they lower the resistance of the skin barrier with a low potential for irritation. Research on limonene has shown that this ingredient has the ability to reduce inflammation through multiple mechanisms. One of the ways limonene reduces inflammation is by inhibiting angiogenesis. Angiogenesis is the formation of new blood vessels, which are an integral component of inflammation. Thus, by inhibiting this process, limonene can help reduce inflammation as well as improve wound healing.