This article describes the Attachment Vitamins program, a trauma-informed parent group intervention for families with young children. Attachment Vitamins is a relational psychoeducational intervention based on the principles of Child-Parent Psychotherapy (CPP). Its goal is to repair the impact of chronic stress and trauma through strengthening the child-parent relationship. The authors discuss the history, development, and implementation of the intervention, made possible through a collaborative research and development platform. Two vignettes are presented to highlight unique aspects of the program. Attachment Vitamins is a promising new intervention with the potential to improve outcomes for vulnerable young children and their families on a large scale.