By Katie Atkinson
Updated July 16, 2013 at 12:00 PM EDT

Talia Joy Castellano, the 13-year-old who offered makeup tips on YouTube to her more than 800,000 followers, lost a six-year battle with cancer on Tuesday, her family announced on their Angels for Talia Facebook page.

“It is with a heavy heart that we share with all of you that Talia has earned her wings at 11:22am,” the Facebook post read. “Please lift her beautiful soul, her beautiful light to heaven and please send your love and prayers to her family during this most difficult time. God speed little one, may you be free from pain and suffering, may your soul feel the light and love that you brought to so many of us on this Earth during the short time you were her with us. We will miss you more than you will ever know baby girl.”

Castellano reached an even wider audience when she appeared on Ellen and host Ellen DeGeneres made the makeup mega-fan an honorary CoverGirl.