The global feed grade riboflavin (vitamin B2) market, valued at $5,286.6 million in 2025, is poised for significant growth over the forecast period (2025-2033). While a precise CAGR is unavailable, considering the consistent demand driven by the expanding animal feed industry and increasing awareness of the importance of nutritional supplementation in livestock, a conservative estimate places the annual growth rate between 4-6%. This growth is fueled by several key drivers. The rising global population necessitates increased livestock production to meet protein demands, directly impacting riboflavin consumption. Furthermore, advancements in animal feed formulation, emphasizing balanced nutrition for enhanced productivity and health, are boosting market demand. Trends towards sustainable and environmentally friendly feed production methods are also influencing the market, with manufacturers focusing on riboflavin sources and production processes with reduced environmental impact. However, price fluctuations in raw materials and potential supply chain disruptions could act as restraints on market growth. The market is segmented based on various factors like application (poultry, swine, aquaculture, etc.), form (powder, liquid), and region. Major players like BASF and Guangji Pharmaceutical are actively competing, shaping the market dynamics through innovation and expansion.