Detailed answer

Frequent and prolonged use of hand sanitizers or disinfectants may cause hyperpigmentation due to the harsh ingredients and excessive drying of the skin. These products often contain alcohols and other chemicals that can strip the skin of its natural oils and disrupt the balance of its protective barrier. This can lead to skin irritation, inflammation, and increased melanin production, resulting in dark spots or patches. It is important to hydrate and protect the skin by using moisturizers and sunscreens, as well as taking breaks from excessive use of hand sanitizers or disinfectants to minimize the risk of hyperpigmentation.