The deposition of a benefit agent on a substrate after treatment of the substrate with a personal care composition which has a viscosity of at least 50 mPa·s at 25° C. and comprises the benefit agent and a low molecular weight surfactant is improved when a water-soluble polymer is used as a substitute for at least a portion of the low molecular weight surfactant. The headspace concentration of a fragrance provided by such personal care composition is also increased.