Loaʻa i nā wahi kokoke i ka equator a i ʻole ma nā wahi kiʻekiʻe loa ka radiation ultraviolet ikaika. Hiki i ka lōʻihi o ka hoʻopili ʻana i nā kukuna ultraviolet ke alakaʻi i nā pilikia e like me ka ʻā ʻana o ka lā a me ka ʻelemakule ʻana o ka ʻili, no laila he mea nui loa ka pale ʻana i ka lā. Hoʻokō nui ʻia ka sunscreen o kēia manawa ma o ke ʻano o ka uhi kino a i ʻole ka omo kemika.

Eia kekahi mau mea hoʻohui maʻamau i hoʻohana ʻia i kēia manawa i ka sunscreen.

① ʻO ka helu haʻahaʻa ke ʻano o kēia mea hoʻohui ʻoi aku ka palekana.

ʻO ke ʻano o ka sunscreen kemika ka omo ʻana a me ka hoʻololi ʻana. Hiki i nā hui organik i loko o nā sunscreen kemika ke omo i ka ikehu o ka radiation ultraviolet a hoʻololi iā ia i ikehu wela a i ʻole nā ​​ʻano kukui ʻino ʻole. Pono kēia ʻano hana i kahi hopena kemika me ka ʻili, no laila hiki i kekahi mau mea hoʻohui sunscreen kemika ke hoʻoulu i kekahi huhū a i ʻole nā ​​​​​​hopena maʻi i ka ʻili. Eia nō naʻe, ʻoi aku ka maikaʻi o ke kūpaʻa a me ka permeability o nā sunscreen kemika, e hana ana i kahi ʻili pale like a mānoanoa ma ka ʻili, e hāʻawi ana i nā hopena pale lā maikaʻi aʻe.

Hāʻawi kā mākou hui i nā mea hoʻomoʻa UV like ʻole no nā huahana dermatology/mālama ʻili/mea hoʻonani, e kūlike ana me ka hapa nui o nā kūlana hoʻonani a me nā lāʻau lapaʻau. E loaʻa iā ʻoe kahi pane i loko o 48 mau hola ma hope o ka nīnau ʻana.