Tweens obsessed with skin care are spending big on beauty products. Experts share do's and don'ts for safe skin.

The trend of teens and tweens obsessing over skin care is "at its max," says Dr. Sheilagh Maguiness, a dermatologist and president of Society for Pediatric Dermatology — and that can mean both good and bad for young people. 

"(They are) heading to Sephora and Ulta Beauty in droves to try to get their hands on what they think is trendy," she tells CBS News.

While the focus on skin care routines at a young age may have some benefits, for example by encouraging young people to establish healthy habits early on, there are also risks, experts warn.