LossShield (NR)-F is a fine-to-medium spectrum Loss Circulation Material (LCM) engineered for seepage to moderate non-reservoir loss environments typically exhibiting loss rates in the range of approximately 20–100 bbl/hr. Designed with a controlled multi-modal particle distribution spanning approximately 250–2000 µm, the system is intended to establish an effective bridging and packing structure within permeable, micro-fractured, and naturally fractured formations to reduce fluid invasion and restore near-wellbore stability. The formulation is optimized to provide efficient fracture bridging, particle consolidation, and fluid-loss control while maintaining manageable rheological impact and drilling hydraulics under dynamic circulating conditions. The system is engineered without oversized particulates, metallic materials, or mica-based components, and utilizes environmentally acceptable materials selected for operational compatibility and responsible discharge considerations.