SABOURAUD 4% dextrose agar is primarily used for the cultivation and isolation of fungi, including yeasts and molds, in clinical and laboratory settings. Its slightly acidic pH (around 5.6) makes it particularly selective for fungi, inhibiting the growth of many bacteria. This medium is widely employed in microbiology for diagnosing fungal infections, such as those caused by Candida species or dermatophytes. It is also utilized in environmental studies to identify fungal contamination in air, water, or surfaces. Additionally, SABOURAUD 4% dextrose agar is commonly used in pharmaceutical and cosmetic industries to test products for fungal sterility. Its simplicity and effectiveness make it a standard choice for mycological research and quality control processes.