He ngoikore ngā hinu ārai rā me ngā hinu hohe ki te waikura, ka puta ai ngā panoni tae, te wehenga, te ngaronga rānei o te whai huatanga o te SPF. He mea nui te takai hei tiaki i ngā hinu whakapaipai me ngā hinu rongoā mai i ngā taumahatanga taiao pēnei i te hāora, te makuku, me te pānga o te UV. Ka whakaratohia e ngā hanganga ngongo ngāwari e rima-paparanga he parenga matatau, he mea pai mō ngā hua tairongo pēnei i te hinu ārai rā, ngā whakapiri tiaki waha, me te tiaki kiri tino pai. Ka tāpirihia e te EVOH (Ethylene Vinyl Alcohol) he paparanga ārai pokapū e tiaki ana i tō hinu puta noa i tōna oranga.