Abstract: Novel thickening agents for nitrocellulose-free, aqueous dispersions of sulfonate-containing polymeric resins have been found to materially improve the adhesive properties of these resins in nail polish formulations. One type of additives comprises fine organic and inorganic powders that are added to the resin suspension. Other types comprises neutral water-soluble polymers. When used in combination, the water-soluble polymers not only act as thickeners but also keep the fine powders in suspension, thus providing a more uniform colloidal mixture for application to nails.