6'-Sialyllactose is widely used in the development of infant formula to mimic the composition of human milk, promoting healthy growth and immune system development in infants. It is also studied for its potential role in enhancing cognitive function and brain development. Additionally, it is utilized in research to understand its anti-inflammatory and antimicrobial properties, which may contribute to gut health and disease prevention. In the food industry, it is explored as a functional ingredient to improve nutritional value and support overall well-being.