Cell culture media are nutrient solutions used to support the growth and maintenance of cells in a laboratory setting. These media provide essential nutrients, vitamins, minerals, and growth factors that cells need to thrive outside their natural environment. There are various types of cell culture media, tailored for different cell types, such as animal cells, plant cells, or microbial cells. Common components include amino acids, glucose, and salts, which help maintain the proper pH and osmotic balance. Proper selection of media is crucial for successful cell culture experiments.