This cover launched her worldwide and was hired for advertising campaigns, including Max Mara, Laurèl by Escada, Armand Bassi, Betty Barclay, Georges Rech, Mango, Majestic and Palmers Lingerie.

[citation needed] She kept been the face of advertising campaigns including Natura Bissé, El Corte Inglés, Clairol, Lancaster, Trident, Fila, Clarins and Timotei.

[citation needed] Mascó has worked with the most well-known photographers in the fashion industry in the 1990s, such as Hans Feurer, Gilles Bensimon, Ellen Von Unwerth, Bruce Weber, Oliviero Toscani, Steven Meisel, Fabrizio Ferri, Albert Watson or Patrick Demarchelier among others.

As a catwalk model she appeared in shows for major designers as Armani, Dolce & Gabbana, Valentino, Max Mara, Carolina Herrera, Escada, Sportmax, Byblos, Loewe or Anne Klein.

She played supporting roles in Después del sueño (After the Dream) and El largo invierno (The Long Winter of '39), two Spanish films from the early 1990s.

[citation needed] Mascó's television career began collaborating in the fashion section of TV shows.

In addition she is the president of the Festival of Childhood and Youth, held in Barcelona and advisory board member of Oxfam Spain.