Glass vials are small containers made from borosilicate or soda-lime glass, used for storing and transporting liquids, powders, or other small samples. They are available in various sizes and shapes, including amber-colored or clear glass, depending on the need for light protection. Glass vials are widely used in laboratories, pharmaceuticals, and chemical industries due to their chemical resistance, low reactivity, and ability to maintain sample integrity. The secure sealing provided by caps or stoppers prevents contamination and evaporation, making them ideal for storing sensitive or volatile substances. In analytical applications, such as chromatography, glass vials are used for sample injection and storage. They are also common in cosmetics and essential oils packaging, valued for their durability and non-porous nature.