Premier Monsel's Ferric Subsulfate Solution 8mL bottle (9045055). Popular in LOOP, Biopsy and Colposcopic Procedures. Monsel's is a thickened formulation of the popular hemostatic agent that can be applied directly to the surgical site following excision of diseased tissue. Each 8mL bottle comes with a rayon tip applicator. 1/Ea, 12EA/BX. Priced per each.