RKK: I guess the Mishna Brura(75:15) and Pri Migadim (can even use ones own hair ) doesn’t work for you.
See also the Tshuvos HaGrach(Rav Chaim Kanievsky) when asked did the Chazon Ish and Steipler permit paos nachris he answered yes.There is a very strong bases in permitting it(does depend where one lives )