Shampoo Compositions Comprising a Chelant

A method of inhibiting copper deposition on hair and facilitating the removal of copper deposited on hair comprising:

• a. applying to the hair the shampoo composition comprising:
• i. from about 0.005% to about 5% of one or more chelants, by weight of the shampoo composition, wherein the one or more chelants have a molecular structure as follows:
• wherein n is 2 or 3;
• m is 1, 2, 3, or 4;
• and
• Y and Z are independently selected from the group consisting of hydrogen, methyl, ethyl, propyl, butyl, pentyl, —CH2CH2OH, —CH2CH(CH3)OH), —CH2CH2NH2, —CH2CH(CH3) NH2, and combinations thereof;
• and wherein the one or more chelants comprise:
• 1. log of the formation constant log KML of its complex with copper is higher than 6;
• 2. log P value is from about −5 to about 2;
• and
• 3. molecular weight of from about 50 to about 500;
• ii. from about 2% to about 50% of one or more detersive surfactants, by weight of the shampoo composition;
• and
• iii. from about 75% to about 98% of an aqueous carrier, by weight of the shampoo composition;
• iv. a pH of about 3 to about 8;
• wherein the one or more chelants penetrates inside a hair fiber and removes copper from the hair fiber;
• b. rinsing the shampoo composition from the hair.