Isostearic Acid- Fatty acid used as a binding agent and thickener.
Ivy Extract- Plant extract that can be sensitizing due to its astringent (skin-constricting) properties.
Irish Moss Extract- Type of red algae.
Iron Oxides- Compounds of iron that are used as colorings in some cosmetics. They also are used as a metal.
Iron Powder- Iron powder is, as the name states, a powdered versoin of the mineral iron. A natural ingredient, it’s used as an opacifying agent in cosmetics.
Isododecane- Hydrocarbon ingredient used as a solvent. Isododecane enhances the spreadability of products.