Forget the dresses -- stars' eye lashes were nothing short of impressive at Sunday's 84th annual Academy Awards in Hollywood. Below, their glam teams share with Us Weekly the exact lengthening and volumizing formulas they used on these A-listers before they hit the red carpet.

PHOTOS: The best hair and makeup looks from the 2012 Oscars

Shailene Woodley wore Hourglass Film Noir Mascara in Onyx ($28, paired with Hourglass Film Noir Lash Lacquer ($28,

Sandra Bullock wore Chanel Inimitable Mascara in Noir ($30,

Sarah Hyland wore Bellapierre On The Go Trio Black Mascara ($34.99,

Michelle Williams wore Chanel Inimitable Mascara in Noir ($30,

Kristen Wiig wore Tarte Gifted Amazonian Clay Smart Mascara ($19,

PHOTOS: See what all the stars wore at the 2012 Oscars

Cameron Diaz wore Lancome Hypnose Doll Lashes in So Black ($26,

Natalie Portman wore DiorShow Mascara in Black on her upper lashes and Azure Blue on her lower lashes ($25 each,

Berenice Bejo wore Diorshow New Look Mascara in Black ($28.50,

Penelope Cruz wore Lancome Oscillation Power Mascara in Black ($35,

PHOTOS: The best and worst style and beauty trends at the 2012 Oscars

Penelope Ann Miller wore Make Up For Ever Aqua Smoky Lash in Black ($22,

Rose Byrne wore L'Oreal Voluminous Mascara ($7.95,

Tina Fey wore YSL Mascara Aquaresistant in Black Abyss ($30,

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