thy thuc khuyn bn ng sm mu kem chng nng ny, ph tin m da vn lo ha nh khng

y chnh l lu quan trng lc mua kem chng nng m khng a dng nng ch
Kem chng nng l sn phm chng th thiu trong chu trnh coi ng da gip chng ta chng li cc tc hi th ng trong khong nh nng mt tri. c bit trong ma H ny lc nh nng cng gay gt, nhit nng cao cao th bn cng cn ch trng bi kem chng nng hng ngy.
c bit, cc thy thuc khuyn bn nn chn cc chic kem chng nng "ph rng". tri li, c cc dng kem ko mang kh nng chng nng ph rng, th bn nn cn k trc lc rt tin tm v.
cc mu kem chng nng ph rng s vi bao so b ghi broad spectrum. "iu ny s hu tc th kem chng nng ca bn phn phi kh nng kim sot an ninh c tia UVB v UVA" bc s David Kim san s c trang Allure.
D bn s dng kem chng nng mang ch s SPF cao ngt ng nhng khng s hu kh nng chng nng ph rng th n vn cha bo v da. thy thuc da liu lng danh Joshua Zeichner cn nhc thm: "Th rng bn chn sn phm c SPF 15 nhng chng nng ph rng cn hn chn sn phm s hu SPF cao nhng ko bo v bn khi tia UVA".
nh sng UVB c bc sng t 290nm ti 320nm. UVB vi th gy ra cc thay i trng thy khc trn b mt da nh chy nng, en sm.
Cn nh sng UVA s hu bc sng trong khong 320 nm ti 400nm, khun kh ln hn so c UVB. UVA, cn c gi l tia sng s hu bc sng di, chim khong 95% lng tia UV chiu vo da. UVA s y nhanh giai on lo ha, hnh thnh np nhn v thm nm, lm cho tng nguy c gy ung th da.
https://www.instapaper.com/p/kemchongnang68
C UVA v UVB u gy ra cc nh hng tiu cc ln ln da. bi th, bn cn chn cc dng kem chng nng ph rng kim sot an ninh ln da khi tc hi t hai chic nh sng ny.
Bc s khuyn bn ng mua loi kem chng nng ny, ph tin m da vn lo ha nh thng - nh 3.
mang nhng chic kem chng nng khng mang kh nng chng nng ph rng (broad spectrum) th bn ch di u t tin nong lm g
lc chn kem chng nng, bn cng nn lu chn kem s hu ch s ti thiu l SPF 30. Ch s SPF th hin kh nng bo k ln da khi tia UVB ca kem chng nng. Ch s SPF cao th vi ngha l kh nng bo k da tng ln, nhng lc bn chn ch s chng nng cao hn (khong t SPF 30 tr ln) th s ko c rng ri s d bit.
Trong trng hp bn thng xuyn di chuyn, ra nhiu m hi, tham gia nhng hot ng di nc th bn nn chn cc chic kem vi kh nng chng nc. chic kem y s vi ch thch v tc dng chu nc (water resistant), v xc nh c th s gip bo k da t thi k 40 pht hay 80 pht khi m xc tip vi nc.
Xem thm
lc thoa kem chng nng, bn nn trm ch t 15 pht trc khi ra ngoi. y chnh l thi k kem n nh, to lp mng chng nng bm chc trn da. trong khong thi k ny, nhng hot cht nh cn, du hay nc bay hi bt, li lp mng chng nng kim sot an ninh da. v nh bn ra ngoi hoc chuyn ng mnh, bi li ngay sau lc thoa kem chng nng th cng ng ngha c vic lp kem cha n nh s d b tri, khng cn kh nng kim sot an ninh da.
Bn cng ng qun ty trang vo mi ti lm cho sch cn kem chng nng cn bm di da. v nh ko ty trang, nhng thnh phn chng nng vi kh nng tch tr su trong l chn lng s khin da ln mn. c trng, cc loi kem chng nng c kh nng chng tri, chng thm th cng "cng u", nu nh ko s dng ty trang chuyn dng th kh m vi th khin sch hon ton.
v nh bn l mt gio khin p, v hn ht, l mt ngi n sc khe khi qut v sc khe ln da nhc ring. Kemchongnang.org hn s l 1 a ch tin cy dnh cho bn ch mt khong gn ti. Hy mua ti chng ti qua thng bo di y.
Thng tin lin h
Website: https://kemchongnang.org/
a ch: 8 Hng Than, Nguyn Trung Trc, Ba nh, H Ni
Email: [email protected]
Facebook: https://www.facebook.com/kemchongnang68