Ireland, 19, checked herself into SOBA Recovery Center, a drug and alcohol treatment facility in Malibu, California, that specializes in psychological disorders and addiction, reported People magazine.
The model, who is the daughter of Kim Basinger and Alec Baldwin, tweeted that she "needed a breather" and time to work on herself. She refuted stories that her rehab stint was due to substance or alcohol abuse.
"I checked myself into Soba for two weeks to just get away for a little bit. I'm not much a party cat but I am here deal with some emotional trauma and getting the intensive therapy I needed in order to recover," Ireland tweeted before entering the facility.