Kunezinhlobo ezimbili kuphela ze-Agathosma crenulata (i-buchu yamaqabunga amade) ne-Agathosma betulina (amaqabunga ajikelezayo e-buchu) enobaluleko lokuthengisa ngamafutha ayo. Isivuno ingxenye ka-1 kuya ku 2% wezinto ezintsha. Amafutha asusiwe asetshenziselwa imithi yokwenza ubuso bubukeke, nephunga elimnandi (ukuheha ukunambitheka kwekhalanti emnyama) kanye nokombala wokudla.
Ngokwemithi isetshenziselwa ukwelapha izifo zenso nezikhalazo zesifuba. I-Buchu iphinde ikwazi ukulwa nokuvuvukala futhi isetshenziselwa amafutha okugcoba, okuthengiswa njengamanzi okuphuza noma njengamafutha ahlanzekile. Amaqabunga esitshalo izisebenzi zokuhlanza umzimba futhi anikeza ukukhululeka kwenkantshu yeqako nokuqumba. I-Buchu Oil ijabulela isimo se-GRAS - ngokuvamile samukelwa njengophawu lokuphephile - kokubili i-FDA ne-European Union. Ngenxa yentengo ephakeme yamafutha nokusongela amakoloni asendle, abalimi sebeqale ukulima ibuchu njengesitshalo sokuhweba. I-Buchu ivamile ezintabeni zaseWestern Cape. Ezohwebo kukhona izitshalo ePiketberg, eCitrusdal naseCederberg. I-Buchu ikhetha inhlabathi emunca amanzi kahle futhi ingahlwanyelwa kusuka kumbewu.