The parents of nine-month-old twins said it was "incredible to have our beautiful girls back home" after the second girl was released from hospital.
Isabella Koupparis and her twin Lola were sleeping in their cots at their home in Hackney when they were mauled on 5 June.
Isabella left hospital on Thursday after treatment for arm injuries.
Lola, who suffered injuries to her face and arm, was released from the Royal London Hospital six days ago.
Their parents Nick and Pauline said: "As Isabella has just arrived home, we want to spend this wonderful day celebrating as a family.
