Long nau, ol gutpela UV absobba/lait stabilisa em planti bilong ol i save kamap long ol kompaun, moa yet ol kain bilong ol salicylic acid ester, benzofinon, benzofinon, ol akrilonitriles i senisim, ol traiasin na ol amines i bin pasim ol. Em inap winim wanpela gutpela samting moa long wanem kain wanpela ultraviolet absoba. Ol aplikesen eria bilong ol UV absorber: ol polima (plastik, na ol narapela), ol koting (painim piksa bilong han, pinisim bilong wokim haus), ol ink bilong prinim, pos-} long ol tekstil ol i bin daiim/ol i bin prinim, ol kosmetik bilong sanskrin.
From we laet blong san i gat plante laet we i gat ultraviolet we i save spolem ol samting we oli gat kala, wevlength i olsem 290-460 nanomita. Ol dispela altraviolet lait i save bagarapim ol long rot bilong kemikel redoks riaksen (redox riaksen), i mekim ol kala molekiul i bagarap na pinis.
I gat ol rot bilong bodi na kemikal bilong pasim lait bilong altraviolet nogut long bagarapim kala. Hia em i sotpela introdaksen long kemikel rot, em olsem, yusim ol ultraviolet absoba long stopim gut samting ol i lukautim, o daunim wok bilong en long kala. bagarapim
