Virtual try-on (VTO) technologies powered by augmented reality (AR), 3D modeling, computer vision, and AI-driven personalization enable consumers to digitally preview products before purchase. Initially applied to fashion and cosmetics, VTO now influences furniture, automotive interiors, jewelry, and eyewear retail. This research examines global adoption patterns, cultural variations, technical architecture, and psychological factors shaping consumer acceptance. Using hypothetical datasets and comparative market analysis, the study finds that VTO adoption improves confidence, reduces product returns, and enhances cross-border e-commerce conversions, especially in mobile-first emerging markets. Challenges include cultural aesthetic differences, device limitations, privacy concerns, and computational bias in body models. The paper proposes a global VTO deployment framework.