Disclosed are methods and compositions of lightening the color of hair that has been recently contacted with a relaxing or straightening composition, the method comprising combining a bleach composition comprising at least one oxidizing agent selected from the group consisting of persulfates, perborates, percarbonates, their salts and mixtures thereof, and at least one rheology-modifying agent, with a developer composition comprising hydrogen peroxide and a cosmetically acceptable carrier in order to form a lightening composition, wherein the pH of the lightening composition is from about 2 to about 7 applying the lightening composition onto the hair leaving the lightening composition on the hair for a time period sufficient to achieve an increase of 1 to 4 in the tone height of the hair and rinsing the hair with water.
