👉 Hexadecyl is a synthetic compound with the chemical formula CH3CH2CH2CH2CH2CH2CH2C10H8. It is a colorless, odorless, and toxic liquid that is used as an active ingredient in cosmetic products such as lotions, creams, and sprays. Hexadecyl is often referred to as "hexadecane" because it has the chemical structure of a hexadecane (a type of diene),