Walmart is introducing a new line of cosmetics, but this one is designed for girls 8- to 12-years-old. They might be on to something considering the tween makeup market rakes in more than $24 million per year. The top sellers are lip gloss, eye shadow and mascara.

“I like blush, lipstick, um, mascara,” 9-year-old Haley Solomon said to ABC News.

Some experts think tween makeup might be adding to self-worth issues some young girls face growing up.

“We are raising another generation of girls who kind of measure their self-worth based on what’s on the outside,” Dr. Logan Levkoff, author of the book “Third Base Ain’t What it Used to Be” said to “Good Morning America.”

Levkoff is not rejected the idea of tween makeup, she just wants young teenagers to have fun with it and not treat it like a necessity.

“It’s really about playing within your home and not feeling like you have to put on a face for everything else,” she said.

Levkoff said that the decision is up to the parents and that it is acceptable to tell your young daughters no.

“Parents should be talking about makeup and parents are entitled to be parents and if your daughters want to wear makeup you can say no,” Levkoff said. “We don’t just have to befriend our kids, but we also have to explain why. Because you are beautiful and it’s really not what’s outside that’s beautiful and there’s plenty of time for you to explain all of these things.”

Read on @http://abcnews.go.com/US/tweens-young-makeup/story?id=12777008