julia boorstin, thanks so much. have a great weekend. >>> well, many people want to look younger without going under the knife, and some of those are turning to doctors who recommend injections for off-label procedures, meaning they are using the drugs for reasons other than what the fda approved them for, but is that practice safe? plastic surgery dr. hopping joins us this morning. first of all, is off-label use legal in the u.s.? >> absolutely. off-label use is very legal in the united states. in fact, some studies have shown that 60% of drug use is off-label. >> give us an example of what sorts of off-label drugs are used to enhance different features? >> well, in our last session, we talked about drugs like latisse, which are fda approved to grow eyelashes. men have been putting it in their hair. that's an off-label use. but with off-label, there has never been a study that actually shows that it works. so that's the tricky part of off-label. so it is legal, but it sometimes can be undocumented. >> right. so it