Carbopol® EZ-4 polymer is a hydrophobically-modified, easy-to-disperse, moderately crosslinked polyacrylic acid polymer powder polymerized in a toxicologically-preferred cosolvent system. It is an efficient, self-wetting rheology modifier designed to impart thickening, emulsion stabilization, and suspension properties to a wide range of household products. Carbopol EZ-4 polymer was designed for use as a versatile rheology modifier in surfactant-based formulations where longer flow, enhanced ease of use, and electrolyte tolerance are key requirements.