Can povidone-iodine be used to wash the face?
Jan 24, 2025
Source: Cainiu Health
Dr. Liu Wenmin
Introduction
Under normal circumstances, povidone-iodine should not be used for facial cleansing. If topical use of povidone-iodine is required, it is recommended to consult a physician. The skin on the face is more delicate compared to skin on other parts of the body and has its own intact skin barrier function, including structures such as the sebum membrane and stratum corneum, which protect the skin from harmful external substances and help maintain skin hydration and normal physiological functions.
Generally speaking, povidone iodine should not be used to wash the face. If you need to use iodine locally, it is recommended to consult a doctor first. The specific reasons are as follows:
The skin on the face is more delicate compared to skin on other parts of the body and has its own intact skin barrier function, including structures such as the sebum membrane and stratum corneum, which protect the skin from harmful external substances and help maintain skin hydration and normal physiological functions. Povidone iodine has certain irritant properties, and its direct use for facial cleansing can damage the integrity of the sebum membrane and stratum corneum, weakening the skin's barrier function. This can make the skin more sensitive and vulnerable, increasing its susceptibility to invasion by external bacteria, viruses, and other microorganisms, as well as damage from physical factors such as ultraviolet radiation.
The iodine component in povidone iodine may cause allergic reactions in some individuals. The immune system of facial skin is relatively sensitive; upon contact with iodine, the immune system may identify it as a foreign harmful substance and initiate an immune response, resulting in symptoms such as redness, swelling, itching, rash, and even blisters and exudation. Allergic reactions not only cause physical discomfort but may also affect facial aesthetics. In severe cases, they can lead to skin infections and hyperpigmentation, further damaging skin health.
When using iodine for skin disinfection, it is important to follow medical advice. In particular, facial skin should avoid direct use of povidone iodine for routine cleansing.
