Oral compositions for preventing or removing stains from teeth

A tooth-stain bleaching composition in concentrate form consisting essentially of:

• I. from about 2% to about 50% of a bleaching compound selected from the group consisting of:
• aryl peroxyacids having the formula:
• ##SPC3##
• wherein at least one X is a substituent group having a Hammett sigma constant equal to or greater than +0.2, and n is a number from 1 to 3, said substituents being either in the meta or para portion;
• and
• Ii. the balance an inert organic diluent which is an organic liquid or soft wax selected from the group consisting of:
• A. saturated fatty acids containing from about 8 to about 22 carbon atoms;
• and
• B. saturated acylate esters containing from about 10 to about 80 carbon atoms wherein the acyl group contains from about 2 to about 22 carbon atoms and from 1 to about 3 carboxyl groups, and the alcohol group contains from 1 to about 18 carbon atoms and from 1 to about 6 hydroxy groups.