Salt thickens by reducing micelle charge density, helping to promote the conversion of spherical micelles to rod-shaped micelles. Historically, sodium chloride has been used. However, divalent salts like magnesium sulfate are more efficient if compatible in the formulation. Viscosity of salt-thickened formulations decreases with increasing temperature and will not stabilize suspended particles. Using too much salt (>2%) can also impact the clarity and cloud point of the formulation.