Ingredient dictionary

Also known as red sandalwood, this fragrance ingredient poses a risk of irritating skin.

Plant for which there is little research showing it to have any benefit for skin.

Used topically, this ingredient's methanol content makes it potentially sensitising for skin.

Alpha isomethyl ionone is a fragrance ingredient that must be listed on products that contain it due to its risk of causing a sensitised reaction.

This synthetic fragrance ingredient has been shown to cause allergic contact dermatitis.

Synthetic fragrance used in cosmetics.

Also known as aniseed, it can have antioxidant properties.

Fragrant volatile oil and plant extract taken from the Laurus nobilis plant that can sensitize skin.

Balsam resin that has some fragrant properties; it may also be sensitising to skin.

A volatile fragrance chemical with a sweet, floral odor used to impart scent to cosmetic products and perfumes.

This citrus oil is known to sensitize skin, especially when it’s exposed to UV light.

Synthetic fragrance compound with a floral scent that’s derived from the volatile citronellol. It can cause skin sensitization.

Rose-derived essential oil with volatile fragrant compounds that pose a risk of irritation to skin.

Synthetic fragrance ingredient used to impart a sweet, musky odor to cosmetics. Can irritate skin.

Citrus fruit whose volatile compounds are sensitising.

A volatile chemical compound often found in citrus oils. It’s used as a fragrance and solvent but can sensitize skin.

A plant-derived fragrant compound that can cause skin sensitization, especially when exposed to air.

The litsea or may chang plant produces fragrant essential oils whose aromatic compounds, like citral, are known to irritate skin.

Fragrant volatile oil and plant extract taken from the fruits of the Litsea cubeba plant that can sensitize skin.

Plant extract, AKA Levisticum officinale root extract, that contains volatile fragrant compounds known to irritate skin.

This oil contains high amounts of linalool, which can cause skin irritation.

This natural ingredient, also known as myrrh, has the potential to cause skin sensitization.

Primarily used as a fragrance; it can be a skin sensitizer.

Fragrant oil (Latin name Santalum album) that can cause skin sensitivity, especially when used in pure concentrations.