Tegin majored in "clothing design" at the Textile Institute of Kiev. She started her career in Moscow designing costumes and decorations for club performances and for fashion shows. In the end of the 90s such media as Vogue and Cosmopolitan started to write about Svetlana, and Tegin Fashion House opened in 2001.
The brand has Tegin Collection (since 2001), Tegin Cashmere (since 2001), and Tegin Kids (since 2007).
Svetlana is often called "the queen of cashmere" due to an exclusive quality of her products that use Mongolian Cashmere. Tegin also produces designer sheepskin coats which are a great success because of original design and fine quality.
Evening dresses (haute couture) have selected clientele among actresses, it-girls, and business elite.
The easily recognized style of Svetlana's collections is due to intellectual and philosophical content behind it. Tegin uses world's cultural heritage to develop her concepts, and she balances between sensuality and restrain.