Txuas ntxiv txuas ntxiv txhawm rau txhim kho, ua kom paub tseeb tias cov khoom lag luam saum toj zoo hauv kab nrog kev ua lag luam thiab cov neeg siv khoom yuav tsum tau ua. Peb lub tuam txhab muaj cov kev paub tseeb tau tsim rau 2,4,6 - Trimethyl - 1,3,3,5 - Trioxacycacane (Paraldehyde),Ethyl 2 - Furoate,Benzyl Cawv,Vanillin isobutyrate,2 - Methylthio ThiazoleCov. Peb ua lub luag haujlwm hauv kev muab cov neeg siv khoom muaj cov khoom lag luam zoo kev pabcuam thiab cov nqi sib tw. Cov khoom yuav muab rau thoob plaws ntiaj teb, xws li Tebchaws Europe, Belaria, Belfus, Belmemburg. Nrhiav kev ua lag luam zoo hauv ntiaj teb, kev lag luam kev lag luam thiab khoom lag luam nce qib. Ntxiv mus, lub tuam txhab nyob qis qis ntawm nws cov neeg sib tw vim nws cov qauv zoo hauv kev tsim khoom, thiab ua tau zoo hauv kev txhawb nqa kev lag luam.