Dry silica gel packets are desiccants commonly used to absorb moisture and humidity in various products and environments. These packets contain silica gel, a porous and highly absorbent material made from silicon dioxide. They are often found packaged with electronics, leather goods, medications, food products, and other moisture-sensitive items. By absorbing excess moisture, silica gel packets help prevent the growth of mold, mildew, and bacteria, as well as the deterioration of goods caused by humidity.