Natalie Portman Wore a Curly Half-Up Hairdo; California Sued Brazilian Blowout

• The state of California is suing Brazilian Blowout for failing to inform customers that the treatment contains formaldehyde, which is a violation of California’s Safe Cosmetics Act. [WWD]

• Emma Watson fielded more questions about her short haircut at the Harry Potter premiere, and she said she has no plans to dye it: “I’m very into looking natural so probably not but never say never,” she said. [StyleWatch/People]

• Here’s a DIY version of the half-up hairstyle that Natalie Portman wore to the Black Swan premiere last night. [BellaSugar]

• Vegan-lifestyle champion Alicia Silverstone gave tips on keeping your beauty routine ecofriendly. [Daily Beauty Reporter/Allure]

Burberry made a limited-edition key chain with the brand’s Nude Beige Lip Glow tucked inside the largest cube-shaped bauble. [StyleList]

• Nail lacquer company OPI is reportedly about to be bought by either Proctor & Gamble or Coty Inc., depending on who offers a higher bid. The acquisition would be the largest in the history of nail polish. [WWD]

• French label Lalique is launching a new scent, called Fleur de Cristal, to commemorate the 150th anniversary of founder René Lalique’s birth. The perfume drops on Monday and cost $104.70 to $132.30 depending on the bottle size. [WWD]