American Express recently launched their new Zinc charge card targeted to college students. In their marketing campaign, one of the key selling points of the Zinc Card is that it helps young adults build credit.  However, this may be a bit misleading.

According to John Ulzheimer, president of Consumer Education at Credit.com, charge cards are an excellent way to avoid falling into debt, but they aren't a great strategy for building strong credit and credit scores. 

John appeared on CNBC's "Street Signs" along with a spokesperson from American Express Zinc Card yesterday to discuss the topic. Watch the clip for the details: