Ko ngā osmolyte waro he momo matū e pupuri ana i te motuhaketanga pākia o ngā pūtau, ā, e ātete ana ki te pēhanga mahi osmotic hei whakau i te tātai macromolecular. Hei tauira, ko te huka, ko ngā polyol polyether, ko ngā warowaihā me ngā matū, ko te betaine he matū waro matua e uru ana.

E whakaatu ana ngā rangahau pūtaiao o nāianei, ko te nui ake o te maroke, te tote rānei o te taiao, ko te nui ake o te ihirangi betaine i roto i ngā pūtau moroiti.

01

Ka whakarerekē ngā pūtau kiri i te kukū o te osmolyte i roto i ngā pūtau i runga i te osmolyte waro kua kohia, kua tukuna rānei, kia mau tonu ai te taurite o te rahinga me te wai o ngā pūtau.

Ina nui te pēhanga mahi osmotic o waho, pērā i te maroke o te kiri, te hihi ultraviolet rānei, ka nui te rere o te matū osmotic ki roto i ngā pūtau kiri, ka hua ake te apoptosis o ngā pūtau kiri o waho, ā, ka taea e te matū osmotic betaine te aukati i te tukanga katoa.

Ina whakamahia te betaine i roto i ngā hua tiaki whaiaro, ka whakamahia hei matū uruhanga rauropi hei pupuri i te taurite o te urunga o ngā pūtau kia rite ki te urunga ki roto i te kiriuhi o te kiri, kia pai ake ai te makuku o te mata o te kiri. Nā te mātāpono whakamakuku ahurei o te betaine ka rerekē ai ōna āhuatanga whakamakuku i ngā whakamakuku noa.

02

Ki te whakaritea ki te hinu waikawa hyaluronic, ahakoa he iti noa te kukū o te pīti, ka taea tonu e ia te whakamakuku i te kiri mō te wā roa.

Kei roto i te hua whakamakuku hohonu a Vichy Fountain a L'Oreal Wīwī ēnei momo kai. E kī ana tana pānuitanga whakamakuku hohonu "wai puna" ka taea e te hua te kukume i te makuku hohonu o te kiri ki te kiri me te iti o te wai, kia nui ai te wai e whakatairangahia ai te kiri mata.