Ko te ahua o te pūhui pararopi, e mohiotia ana ano ko te houra, te houra, te houra, te konutai hydroxide he kaha te kawakore, he tino kino, ka taea te whakamahi hei neutralizer waikawa, me te kaikawe masking, te kaihoko toka, te kaikawe whakamarumaru, te kaihoko tae, te kaihoko saponification, te peeling agent, te horoi, me etahi atu, he tino whanui te whakamahinga.