Pink - it is one thing to have a dress code that requires you to look neat and profession and another to specifically detail that you must at a minimum be wearing 2 - 4 inch heels, lipstick, mascara, eye liner, blush, and foundation which is what the British firm did.  In addition they also had requirement for nail polish and that nylons matched closely your skin tone so for example a white person could not wear black nylons only those with darker skin tones.

Then there is also the requirement to wear a skirt instead of dress pants which I have also seen.  

They are looking at these in the UK since it appears there are one set of rules for men and another for women.  Men are not required to go to the expense of makeup and manicures so part of the review is that the rules cost women more to comply with which is considered an undue burden.