Safonov spent his childhood years in the Krasnoyarsk region. He attended school in Lviv, Ukraine, where his family moved around the time he was seven years old.
Kirill Safonovi moebränd sai alguse 2010. aastal Tallinnas. Tegemist on omanimelise brändiga ning oma esimest kollektsiooni esitles Kirill juba aastal 1999 Eesti Kunstiakadeemia tudengina, kust ta hiljem omandas ka magistrikraadi.