North America dominates the Creatinine (Cr) Test Kits market with a 35% share, driven by advanced healthcare infrastructure, high adoption of precision diagnostics, and robust R&D investments. The regionโs aging population and rising prevalence of chronic kidney disease (CKD) further fuel demand. Europe follows with 30%, supported by stringent regulatory frameworks, strong public healthcare systems, and growing emphasis on preventive care. Asia Pacific is the fastest-growing region, projected to expand at a CAGR of 12%, owing to urbanization, increasing diabetes incidence, and government-led healthcare modernization initiatives. Improved diagnostic accessibility in countries like India and China underscores its potential.