There's no such thing as too far. If it works it's funny, if it doesn't work it's too far, it's stupid. Really there's no such thing as "too far. " You're joining the politically correct when you use words like "too far. " You don't want to join the army of politically correct.
One of the things that I love about L'Oréal is that it's accessible and aspirational. Beauty doesn't have to be a mystery, and it can be available to everybody. But it's also about accessing what is most innately human, what we think is attractive.