A new high-fluid-loss, high-strength (HFHS) lost circulation solution has been designed and validated using innovative test methods. This new HFHS pill system has been recently proven in the field to work for a wide range of loss rates and provides a more effective and permanent seal than traditional treatments.While lost circulation is one of the drilling industry's most significant problems, the solutions are numerous and varied. Direct and associated costs of lost circulation approach $3 billion globally, including whole mud loss, treatment of cost, and rig time.Specially designed pills are some of the more popular approaches to curing severe lost circulation. These pills are mixed, pumped and spotted across the loss zone with the intention to stop or reduce the losses sufficiently enough to resume circulation of the wellbore fluid and regain control of the well. However, many severe lost circulation solutions that are used today incur additional risks that should be avoided. These may include having to use specialized pumping equipment, bypass tools, or even the removal of the BHA. The HFHS pill was developed to not only meet the need for an effective lost circulation solution, but also not present further operational risk during its placement.In this paper, the path to designing and testing the HFHS pill is described, including an evaluation of the effectiveness of a number of commercially available high-fluid-loss pill treatments and the methodology used to meet a set of "ideal" field criteria. The roles played by various teams in support of this effort will be highlighted, as well as results from recent field trials which prove the advantages of this technology.