Vaping is becoming a major health concern for teens, but officials say one company may be targeting them.

The Food and Drug Administration raided Juu’s headquarters last week as concerns continue to grow of the e-cigarette company’s marketing efforts towards underage teens.

Juul’s and similar e-cigarettes have become popular amongst teens.

According to the FDA, 2.1 million middle and high school students reported they currently use them.

Juuls are not only small, they also come in several different flavors and have a feature called "party mode."

In a statement on Juul's website, it says in part, "we want to be part of the solution to end combustible smoking, not part of a problem to attract youth."