Ingredient dictionary

This plant extract with potential antioxidant properties comes from a tree known as “sweet acacia.”

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

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

Volatile fragrance ingredient known to be sensitizing to skin. Should be avoided.

This fragrance ingredient can cause irritation when applied to skin.

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.

Seeing "aroma/flavour" on an ingredient list can be either good or bad. For example, if the aroma or flavour comes from mint....

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.

Benzyl benzoate is a volatile fragrance ingredient and solvent with documented skin irritancy effects.

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.

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

Commonly known as frankincense oil, this ingredient’s volatile compounds can sensitize skin.

Fragrant ingredient whose floral-like scent can cause skin irritation and may also pose health risks when inhaled.

Fragrance used in cosmetics; it can be sensitising to skin, much like ylang ylang.

This plant, also known as ylang-ylang, has components that can be sensitizing to skin.

This flower from a tree better known as ylang-ylang has antioxidant properties, but its oil can be highly sensitizing.

Plant of the ginger family, used as fragrance in cosmetics.

Essential oil used as a flavoring agent and fragrance component in cosmetics.

Fragrant plant extract. There is evidence that cedarwood oil is sensitising.

Fragrant oil that can aggravate skin.

This perfume additive has a strong spicy-herbal scent and is a skin sensitizer.

A volatile fragrance chemical extracted from geranium, rose, and other plants, citronellol has a characteristic grassy, citrus-like scent.

Potential skin irritant.

As with all citrus extracts, this has antioxidant properties, but also contains components that can sensitise skin.

Fragrant plant that is most sensitising to skin in its oil form.

Bitter orange extract whose methanol content is potentially sensitizing for skin.

Plant that produces juices, extracts and oils that can cause skin sensitization due to volatile fragrant compounds, acidity and photosensitive compounds.

Fragrant, volatile citrus oil that can be a skin sensitizer.

Used as fragrance; can be a skin sensitizer.

Potent skin sensitizer when applied repeatedly.

Contains eugenol, which can be a skin sensitizer and cause photosensitivity.

Fragrant plant oil that has the potential to irritate skin.

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

This South America-native plant has some wound healing properties, but also contains volatile compounds that can irritate skin.

Synthetic fragrant component in products; it can aggravate skin.