A 28-year-old woman from Harlem, N.Y., claims she contracted herpes after using a Rihanna-endorsed lipstick at a MAC pop-up shop earlier this month.

Starkeema Greenidge filed a lawsuit against MAC, in which she alleges that a MAC representative used RiRi Woo on her lips, which, in turn, caused her to subsequently contract the virus because a new lipstick tube wasn't used.

"(MAC) didn't use a fresh or new lipstick tube, but rather one that had been used for other patrons," information in the suit reveals.

On May 7, Greenidge attended Rihanna's concert at the Barclays Center in Brooklyn, N.Y., where she visited a MAC pop-up shop that was opened for the event. This is the day she explains she was hit with herpes, which a doctor diagnosed.

"I wasn't able to work for two weeks. It cost me a lot of money," she told The New York Daily News.

Greenidge, a waitress, is looking for the company to be more sanitary in the future and train its employees to use disposable tubes or swabs to apply lipstick on customers.

MAC officials did not comment on the matter yet.