Re hlahisa mefuta e mengata ea OBA, fluorescent whitening agent. Optical Brightener Agent BBU, eo hape e tsejoang e le fluorescent whitening agent BBU, ke motsoako oa lik'hemik'hale o sebelisoang liindastering tse fapaneng tse kang masela, pampiri le lipolasetiki ho ntlafatsa ho khanya le bosoeu ba lihlahisoa.