amakuru

Kurinda izuba ni ngombwa-kugira ku bagore ba kijyambere umwaka wose. Kurinda izuba ntibishobora kugabanya kwangirika kwimirasire ya ultraviolet kuruhu gusa, ariko kandi birinda gusaza kwuruhu nindwara zifitanye isano nuruhu. Ibikoresho byizuba byizuba mubisanzwe bigizwe numubiri, imiti, cyangwa imvange yubwoko bwombi kandi bitanga uburyo bunini bwo kurinda UV. Kugirango ubafashe kugura neza izuba ryizuba ryizuba mugihe kizaza, uyumunsi iragukura mubintu byimiti ikora nibikoresho bifatika kugirango usesengure ibintu byiza byizuba.

Ibikoresho bikora imiti

Octyl imikorerexycinnamate

Octyl imikorerexycinnamate (OMC)ni kimwe mu bikoresho bikoresha izuba ryinshi. Octyl imikorerexycinnamate (OMC) ni akayunguruzo ka UVB gafite umurongo mwiza wa UV winjiza wa 280 ~ 310 nm, umuvuduko mwinshi, umutekano mwiza, uburozi buke, hamwe no gukemura neza kubikoresho byamavuta. Azwi kandi nka octanoate na 2-ethylhexyl 4-mikorerexycinnamate. Uru ruganda rwemejwe nk'ibikoresho byo kwisiga muri Amerika no mu muryango w’ubumwe bw’ibihugu by’Uburayi (EU) ku gipimo cya 7.5-10%.

Benzophenone-3

Benzophenone-3(BP) BP-3 ihindurwamo okiside byihuse munsi yimirasire ya ultraviolet, igabanya imikorere yayo kandi ikabyara amoko menshi ya ogisijeni ikora. Muri Reta zunzubumwe zamerika, urugero ntarengwa rwemewe rwa BP-3 mu zuba ni 6%.

Benzophenone -4

Benzophenone-4(BP-4) isanzwe ikoreshwa nka ultraviolet ikurura ibintu kugeza kuri 10%. BP-4, kimwe na BP-3, ni inkomoko ya benzofenone.

4-methylbenzyl camphor

4-methylbenzylidene camphor (4-methylbenzylidene camphor, 4-MBC) cyangwa enzacamene ninkomoko ya kampora kama ikoreshwa nkimashini ya UVB mumirasire yizuba hamwe nandi mavuta yo kwisiga. Nubwo uruganda rutemewe n’ikigo cy’Amerika gishinzwe ibiryo n’ibiyobyabwenge (FDA), ibindi bihugu byemerera ikoreshwa ry’uruvange mu bitekerezo kugeza kuri 4%.

4-MBC ni ikintu cyitwa lipofilique cyane gishobora kwinjizwa mu ruhu kandi kikaba kiboneka mu ngingo z'umuntu, harimo na plasita. 4-MBC ifite ingaruka zo guhagarika estrogene endocrine, bigira ingaruka kuri tiroyide no guhagarika ibikorwa bya AChE. Izuba ryizuba ririmo ibyo bikoresho rero bigomba gukoreshwa ubwitonzi.

3-benzal camphor

3-benzylidene camphor (3-BC) ni lipofilique ifitanye isano ya hafi na 4-MBC. Umubare ntarengwa wacyo ukoreshwa mubicuruzwa byizuba byizuba mubumwe bwi Burayi ni 2%.

Kimwe na 4-MBC, 3-BC nayo isobanurwa nkumukozi uhagarika estrogene. Byongeye kandi, 3-BC byavuzwe ko bigira ingaruka kuri CNS. Na none, izuba ryizuba ririmo ibyo bintu bigomba gukoreshwa ubwitonzi.

Octylene

Octocrtriene (OC) ni ester yo mu itsinda rya cinnamate ikurura imirasire ya UVB na UVA, hamwe n’ibice bigera kuri 10% mu zuba ry’izuba no kwisiga buri munsi.

Ibikoresho bifatika

Ibikoresho bifatika bifatika bikoreshwa mu zuba ni ubusanzwe ni dioxyde de titanium (TiO 2) na okiside ya zinc (ZnO), kandi kwibanda kwabo ni 5-10%, cyane cyane mu kwerekana cyangwa gukwirakwiza ibyabaye imirasire ya ultraviolet (UVR) kugirango igere ku ntego yo kwirinda izuba. .

Dioxyde ya Titanium

Dioxyde ya Titanium ni imyunyu ngugu yera igizwe na titanium na ogisijeni. Dioxyde ya Titanium ikoreshwa cyane mubiribwa no kwisiga, cyane cyane kubera umweru wacyo hamwe ningaruka zizuba rya UV.

Zinc oxyde

Zinc oxyde ni ifu yera ifite uburyo bwo kurinda no kweza. Nuburinzi bwizuba UV burinda imirasire ya UVA na UVB. Mubyongeyeho, zinc ifite anti-inflammatory, astringent and drying. Zinc oxyde, izuba ryamenyekanye nkumutekano kandi ryiza nubuyobozi bwa Amerika bushinzwe ibiryo nibiyobyabwenge, nimwe murimwe.

Nyuma yo gusobanura iyi ngingo, urumva neza ibintu bikora byizuba ryizuba? Nyamuneka nyandikira niba ufite ikindi kibazo.