When we first learned that one beauty brand is joining the battle against bullying by donating to a fund that offers a teen help line for bully victims, our heads turned. There are others. An admirable message, all. But what about the medium?For us, campaigns like these raise more questions than answers. Can a cosmetics company make a sincere plea to stop bullying and plump up the customer's pout or zap a zit? Or are these token donations -- made by companies whose marketing strategies tend to reinforce teens' fixation with physical appearance -- suspect?