Calamine powder is a composition of zinc oxide combined with some amounts of ferric oxide. The signature peachy pink colour of calamine powder is due to the presence of small amounts of ferric oxide. It has a calming effect on the skin and also possesses toning ability. This powder is one of the most absorbing and soothing clay as well. It is traditionally used as an antiseptic. Calamine powder is mainly used to tackle skin redness, skin itching in summers and other skin irritations. The presence of iron (in the form of ferric oxide) in Calamine powder (when used as a face mask) increases the circulation of the facial skin. It also soothes irritated, acne prone and sensitive skin.