Alek has walked for many notable fashion houses: Chanel, Moschino, Fendi, Dries Van Noten, Ralph Lauren, Karl Lagerfeld, Marc Jacobs, Christian Lacroix, Vivienne Westwood, Chloé, Gucci, DKNY, Jean Paul Gaultier, Michael Kors, John Galliano, Christian Dior, Yves Saint Laurent, Bottega Veneta, Céline, Valentino, Tommy Hilfiger, Roberto Cavalli, Givenchy, Dolce & Gabbana, Lanvin, Giorgio Armani, Sonia Rykiel, Viktor & Rolf, Diane Von Furstenberg, Zac Posen, Emporio Armani, Louis Vuitton, Hermès, and Oscar De La Renta. She has appeared in advertising campaigns for Marc Jacobs, Clinique, Michael Kors, Jean Paul Gaultier, Ralph Lauren, Moschino, Issey Miyake, Ann Taylor, Nars, Banana Republic, Gap, Saks Fifth Avenue, H&M, and Isabel Marant. Alek has appeared on the cover of American, French, German and South African Elle as well as i-D, Cosmopolitan, Glamour, Forbes Magazine Africa and Ebony. She has also been featured in editorials in American and British Vogue. In 2002 she made her acting debut in The Four Feathers as Sudanese princess Aquol. Herb Ritts photographed her for a 1999 calendar in a Joanne Gair body painting that was a highlight of Gair's first retrospective.