Cell Fusion C Rapid Relief Mask Set is a two-step cooling mask duo designed to soothe and reset stressed skin with instant cooling and long-lasting comfort. Post Alpha First Cooling Mask Delivers an immediate cooling effect to calm heat, redness, and irritation. Cica Cooling Mask Provides deeper hydration and long-lasting comfort with Centella Asiatica to strengthen the skin barrier. Use them together to keep skin balanced, calm, and visibly refreshed.