Galactose solution is widely used in microbiology and biotechnology for culturing cells and microorganisms that require galactose as a carbon source. It is particularly essential in yeast research, where it serves as an inducer for galactose-regulated gene expression systems, such as the GAL promoter. In the food industry, it is utilized as a sweetener and a nutrient supplement, especially in products designed for individuals with specific dietary needs. Additionally, it plays a role in diagnostic applications, such as in galactosemia testing, where it helps assess metabolic disorders related to galactose metabolism. In pharmaceutical research, it is employed in drug development studies to understand its role in cellular processes and potential therapeutic applications.