Demi Moore and Bruce Willis' youngest daughter Tallulah has checked herself into a treatment center to deal with her addiction to alcohol and cocaine, reports Star magazine. The outlet is reporting that the 20-year-old entered The Meadows in Arizona in late July.

"Demi feels so much guilt about Tallulah spiraling out of control like she did," said a close source.

The Insider added, "Its like shes living past experiences all over again. But shes trying to be strong for her daughter."

Allegedly the intervention occurred after sister Scout walked in on her snorting coke at the Roosevelt Hotel, and subsequently sought their father out for help. It appears as though the Sin City: A Dame to Kill For star acted quickly -- and has sought a treatment facility to help his daughter fight her addictions.

Interestingly enough, the report comes just days after the actress made headlines for stripping down to her skivvies for a StyleLikeU video interview.

During the intimate interview, the movie stars' progeny talked about the struggles of her childhood: "Like I'm diagnosed with body dysmorphia with reading those stupid f***ing tabloids when I was like 13 and feeling like I was ugly, like always. I believed the strangers more than the people who loved me because why would the people who love me be honest?"

Let's hope she gets the help she needs ...