The Insider.com

It's a colossal tribute to Emma Watson's style and beauty that she's quickly built a name for herself in fashion, and is no longer solely defined by her role in the Harry Potter franchise (ahem, Rupert Grint). The face of Lancôme, Emma recently dished on her favorite beauty products and tips to Teen Vogue -- including her most important beauty rule.

• March 13, 2012Two Looks, One Star
• March 12, 2012Details on Madonna's Dance-Inspired Shoe Line
• March 12, 2012Sparkly Stunners
• March 09, 2012Fashion Full Circle: White Jackets
• March 09, 2012Angelina Keeps Her Leg Under Cover
• March 08, 2012Trend Spotting: Yellow Suits

"I always take my makeup off before bed. Always. (maybe not always... but i TRY. always.)," the British beauty reveals.

Emma Watson 'Sexier' and 'Bolder' With Pixie 'Do

She also shares her surprising secret to amazing skin -- just being "happy."

"My top tip to keep my skin gorgeous... keeping my stress levels down... eg. Doing things that make me happy. (being happy sorts out most problems)," she says.

Emma Watson's Magical Commercial

As for what's always in her handbag?

Apparently her and Nicki Minaj have at least one thing in common -- an obsession with pink lipstick! But in Emma's case, it's a predictably more muted color -- Lancôme's Rogue in Love lipstick in Corail.

To check out more of Emma's favorite beauty products, and to see who her celebrity style icons are, click here.