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.