She made her television debut in the program Jugate Conmigo, and is most known for her portrayal of Belén Fraga in the internationally successful series Chiquititas (as well as on stage, in its annual musical presentations) created by her mother Cris Morena.
Towards the end of 1994, her mother was working on a deal with Argentina's largest television company, Telefe, to create a children's soap opera.
In 2003, she returned to acting, playing "Rocio Mazzini" in a soap opera titled Abre tus Ojos ("Open Your Eyes").
On 28 September 2010, Yan suffered a heart attack and entered the Central Hospital of San Isidro at 4:30 pm, no longer with vital signs.
The news of her death had the peculiarity that the scoop was given by a zonal means, Zona Norte Diario Online, and was disseminated by the national media.
The same day that her remains were released, fans gathered at the Obelisco de Buenos Aires to pay tribute to the actress, with candles, flowers and posters that expressed messages of affection.
After Casi Angeles, the show produced by her mother, Telefe Noticias, the channel's news program, aired a special 2 hours edition solely dedicated to her.
Canal 13, Argentina's number 2 net, also had a special 2 hours edition of its news show, Telenoche, which also achieve high ratings.
With the exception of the news programs, all live shows in Argentina's biggest networks, Telefe and Canal 13, were not aired in tribute to Yan.