The new face of Lancôme has been hush about who she is dating.

But reports link Collins to Zac Efron. The former "High School Musical" star and "The Mortal Instruments" star have been seen out and about dating. But both have yet to confirm their relationship to their fans. However, recently, Beauty World News reported that Efron replied to a fan on a social networking site saying that he was single, which have started speculations of the couple splitting.

Previously, it wasn't a secret when she and her on-screen and off-screen romance, Jamie Campbell Bower, became an item. The two had chemistry that made fans swoon over their characters and over them when they were together. But Lily Collin and Jamie Campbell Bower split before the premier of their movie adaptation of Cassandra Clare's novels "The Mortal Instruments" and are said to be good friends despite having once dated.

Meanwhile, talking to Express.co.uk, the face of Lancôme talked about how she likes to dress down and use as little make up as possible to keep her face fresh and hydrated. She also added that her big, brushy eyebrows used to bother her but eventually she had gotten used to it and now loves them. She also talked about how she wants to be a "mom" and have a huge family.

Is Jamie Campbell-Bower ready to have a family with Collins or is Efron the man for her? As of the moment, Collins says she's pretty happy with everything going on in her life and she just likes to laugh and have fun because it makes her feel the most pretty and, of course, happy.

Collins had also talked about how she and Jamie Campbell Bower were instantly attracted towards each other. "When he walked into the audition room that was pretty much it," she told Express UK.

The second movie to the novels, "The Mortal Instruments: City of Ashes," is to begin filming this year.