Born in Istanbul, Zeynep Tosun studied Business Administration and continued her academic training at Istituto Marangoni Milano Fashion, studying Fashion Design. In the summer of 2005 she did her first internship at Derishow-Turkey. After attending fashion design courses for a year, she was accepted to a masters program study at Marangoni.
During her masters degree studies, she took illustration, digital fashion and pattern and fashion history classes. As soon as she graduated, she held her first fashion show in London in July 2006 and Alberta Ferretti offered her a job. She was part of the design team of Alberta Ferretti and she improved her skills in haute couture and artistry. After a year she decided to move back to Turkey and she participated in ITKIB's young designers contest in 2007 and won 3rd place. In the meantime she took part in Esin Maraslioglu's Designloft project. As part of the project, she had the opportunity to present her 15 look collection with eight other young designers. In addition she worked as a design consultant for some brands.
Following this project, for three months she worked as an assistant to Ece Ege, the creator and designer of Dice Kayek brand. In September 2008 she established her own brand. She started out designing custom-made haute couture outfits as well ready-to-wear collections, nowadays Zeynep Tosun is well known in Turkey and Worldwide and her clothes are loved by celebrities and influencers.