What is the use of ferric oxide in calamine lotion?

Ferric oxide is used in calamine lotion primarily as a coloring agent and to provide a soothing effect for skin irritations. It helps to absorb excess moisture and provides astringent properties, which can aid in relieving itching and discomfort associated with conditions like insect bites, sunburn, and minor skin irritations. Additionally, its presence enhances the lotion's overall aesthetic appeal and stability.