Wash-out hair treatment compositions are disclosed. The compositions comprise a cosmetically-acceptable suspending agent (such as xanthan gum), a cosmetically-acceptable organic acid (such as succinic acid or gluconic acid), silicone having amino, aminopropyl and/or quaternary ammonium functional groups (such as bis-cetearyl amodimethicone), and a hair care carrier the pH of the compositions being within about 0.75 pH units of the pKa1 of the selected organic acid or mixtures of organic acids. The method of using the defined compositions to provide hair care benefits which can last through several shampoos is also disclosed.