Had lead role as Emmeline in The Blue Lagoon (1980), but turned it down. The lead went to Brooke Shields.
Became a print model at the age of 11.
Was originally only contracted for six episodes of Full House (1987) but after positive audience reaction, she was given a full-time role. The initial storyline for her was to be just Danny's co-host and go on one date with him, realizing they would never work out in a dating relationship and have their relationship remain just professional. However, when she became a full-time character, they created a storyline where she would fall in love with Jesse and eventually marry him.
Grew up in Hauppauge, Long Island.
Gave birth to her first child at age 34, daughter Isabella Rose Giannulli, born on September 16, 1998. Child's father is her boyfriend [now second husband], Mossimo Giannelli.