In 2009, she debuted as protagonist in the telenovela Bela, a Feia, the Brazilian version[2] for the Colombian Yo soy Betty, la fea.

Giselle was born in Mexico City on 3 October 1981 to a Mexican father and a Brazilian mother from São Paulo.

For eight months the actress stayed at the home of relatives in Mexico, convinced that she wanted to continue pursuing an acting career.

[4] The same year, she accepted an audition for Pícara Sonhadora,[5] adapted from the original Mexican production and revived the core of SBT TV dramas.

She was then called by the director Luiz Fernando Carvalho who offered her the role of the character Eulália in the novela Esperança in 2002.

[4] That same year she acted in the telenovela O Profeta[9] and appeared on the third edition of the segment of the show Domingão do Faustão called "Dança no Gelo".

[21] In the same year, she had to leave the cast of Vitória, where she would have played the character Renata (which was subsequently interpreted by Maytê Piragibe), due to a motorcycle accident during their honeymoon in Thailand.