Mefuta eohle ea likokoana-hloko e bakoa ke glycoprotein ka tlhaho e teng liphatseng tsa sebaceous tsa kat, e leng Fel d1. Ho fapana le tumelo e tloaelehileng, moriri oa katse ka boeona ha o fuoe letho.

E fumanoa ho dander, empa hape le mathe, moroto le ka kakaretso, ka kakaretso liphiri ea katse (meokho, mamina, jj.). Sena protheine Lula hohle moo katse e eang le ho hasana haholo ha e hlatsuoa. Metsotso e mmalwa ho isa ho dihora tse mmalwa kamora hore a kopane le phoofolo, kapa sebakeng seo phoofolo e neng e le teng ho sona, alejiki a hlahisa matšoao a pele.