{"id":11336,"date":"2026-08-17T17:17:17","date_gmt":"2026-08-17T10:17:17","guid":{"rendered":"https:\/\/useful.vn\/?p=11336"},"modified":"2026-08-17T17:17:17","modified_gmt":"2026-08-17T10:17:17","slug":"nguyen-nhan-va-cach-cai-thien-da-sam-nam","status":"publish","type":"post","link":"https:\/\/useful.vn\/?p=11336","title":{"rendered":"Nguy\u00ean nh\u00e2n v\u00e0 c\u00e1ch c\u1ea3i thi\u1ec7n da s\u1ea1m n\u00e1m"},"content":{"rendered":"<article class=\"cate-24h-foot-arti-deta-info\">\n<h2 class=\"cate-24h-foot-arti-deta-sum ctTp tuht_show\" id=\"article_sapo\"><strong><br \/>\n                    \u00c1nh n\u1eafng, n\u1ed9i ti\u1ebft t\u1ed1 v\u00e0 tu\u1ed5i t\u00e1c c\u00f3 th\u1ec3 khi\u1ebfn da s\u1ea1m n\u00e1m, song duy tr\u00ec l\u1ed1i s\u1ed1ng l\u00e0nh m\u1ea1nh v\u00e0 ch\u0103m s\u00f3c \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n.                <\/strong><\/h2>\n<p class=\"Normal\">Nhi\u1ec1u ph\u1ee5 n\u1eef d\u00f9 ch\u0103m ch\u1ec9 thoa kem ch\u1ed1ng n\u1eafng m\u1ed7i ng\u00e0y song v\u1eabn g\u1eb7p t\u00ecnh tr\u1ea1ng da t\u0103ng s\u1eafc t\u1ed1, xu\u1ea5t hi\u1ec7n \u0111\u1ed1m n\u00e2u ho\u1eb7c m\u00e0u da kh\u00f4ng \u0111\u1ec1u. Theo Woman, kem ch\u1ed1ng n\u1eafng c\u00f3 t\u00e1c d\u1ee5ng h\u1ea1n ch\u1ebf t\u00e1c \u0111\u1ed9ng c\u1ee7a tia c\u1ef1c t\u00edm l\u00ean da, tuy nhi\u00ean tia UV kh\u00f4ng ph\u1ea3i nguy\u00ean nh\u00e2n duy nh\u1ea5t khi\u1ebfn melanin t\u00edch t\u1ee5, do \u0111\u00f3 ch\u1ec9 che ch\u1eafn b\u1ea3o v\u1ec7 da kh\u1ecfi n\u1eafng g\u1eaft l\u00e0 ch\u01b0a \u0111\u1ee7.<\/p>\n<div id=\"container-24h-banner-in-image\">\n<div>\n<div><span><img decoding=\"async\" class=\"news-image\" alt=\"N\u00e1m da h\u00ecnh th\u00e0nh do s\u1ef1 gia t\u0103ng s\u1ea3n xu\u1ea5t v\u00e0 t\u00edch t\u1ee5 melanin, th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 tia UV, thay \u0111\u1ed5i n\u1ed9i ti\u1ebft t\u1ed1, tu\u1ed5i t\u00e1c, vi\u00eam da, stress oxy h\u00f3a, y\u1ebfu t\u1ed1 di truy\u1ec1n.\" src=\"http:\/\/useful.vn\/wp-content\/uploads\/2026\/08\/1785746207-ccf98ec561-benh-nam-da1-800x450-519-7022-9873-5601-width740height417.jpg\" width=\"740\" title=\"1785746207-ccf98ec561-benh-nam-da1-800x450-519-7022-9873-5601-width740height417\"><\/span><\/div>\n<div id=\"24h-banner-in-image\">\n<div id=\"24h-banner-in-image-close\"><img decoding=\"async\" id=\"in-image-close\" class=\"img_tin_lien_quan_trong_bai\" width=\"20px\" src=\"http:\/\/useful.vn\/wp-content\/uploads\/2026\/08\/in-image-close-173.svg\" title=\"in-image-close-173\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"img_chu_thich_0407\">N\u00e1m da h\u00ecnh th\u00e0nh do s\u1ef1 gia t\u0103ng s\u1ea3n xu\u1ea5t v\u00e0 t\u00edch t\u1ee5 melanin, th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 tia UV, thay \u0111\u1ed5i n\u1ed9i ti\u1ebft t\u1ed1, tu\u1ed5i t\u00e1c, vi\u00eam da, stress oxy h\u00f3a, y\u1ebfu t\u1ed1 di truy\u1ec1n.<\/p>\n<h3 class=\"tuht_show\"><strong>Nguy\u00ean nh\u00e2n g\u00e2y n\u00e1m da<\/strong><\/h3>\n<p class=\"Normal\">B\u00ean c\u1ea1nh tia UV, thay \u0111\u1ed5i n\u1ed9i ti\u1ebft t\u1ed1 nh\u01b0 khi mang thai, s\u1eed d\u1ee5ng thu\u1ed1c tr\u00e1nh thai ho\u1eb7c b\u1ed5 sung hormone th\u1eddi k\u1ef3 m\u00e3n kinh c\u0169ng c\u00f3 th\u1ec3 k\u00edch th\u00edch t\u0103ng s\u1eafc t\u1ed1. C\u00e1c t\u00ecnh tr\u1ea1ng vi\u00eam da nh\u01b0 ch\u00e0m m\u1ea1n t\u00ednh, m\u1ee5n tr\u1ee9ng c\u00e1, nhi\u1ec5m tr\u00f9ng c\u00f9ng stress oxy h\u00f3a do thi\u1ebfu ng\u1ee7, c\u0103ng th\u1eb3ng k\u00e9o d\u00e0i \u0111\u1ec1u c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh s\u1ea3n sinh melanin.<\/p>\n<p class=\"Normal\">Ngo\u00e0i ra, qu\u00e1 tr\u00ecnh trao \u0111\u1ed5i ch\u1ea5t thay \u0111\u1ed5i theo tu\u1ed5i t\u00e1c c\u0169ng \u0111\u01b0\u1ee3c cho l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 khi\u1ebfn da d\u1ec5 xu\u1ea5t hi\u1ec7n t\u00ecnh tr\u1ea1ng kh\u00f4ng \u0111\u1ec1u m\u00e0u. Do \u0111\u00f3, ch\u1ed1ng n\u1eafng l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u01b0ng ch\u01b0a \u0111\u1ee7, vi\u1ec7c ch\u0103m s\u00f3c v\u00e0 duy tr\u00ec s\u1ee9c kh\u1ecfe l\u00e0n da c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n to\u00e0n di\u1ec7n h\u01a1n.<\/p>\n<h3 class=\"tuht_show\"><strong>C\u00e1ch ph\u00f2ng ng\u1eeba, c\u1ea3i thi\u1ec7n n\u00e1m<\/strong><\/h3>\n<p class=\"Normal\">B\u00ean c\u1ea1nh l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng kem ch\u1ed1ng n\u1eafng ph\u00f9 h\u1ee3p, vi\u1ec7c duy tr\u00ec s\u1ee9c kh\u1ecfe t\u1ed5ng th\u1ec3 c\u0169ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ch\u0103m s\u00f3c v\u00e0 ki\u1ec3m so\u00e1t s\u1eafc t\u1ed1 da. Ng\u1ee7 \u0111\u1ee7 gi\u1ea5c, duy tr\u00ec t\u1eadp luy\u1ec7n \u0111\u1ec1u \u0111\u1eb7n, x\u00e2y d\u1ef1ng ch\u1ebf \u0111\u1ed9 \u0103n c\u00e2n b\u1eb1ng, b\u1ed5 sung \u0111\u1ee7 n\u01b0\u1edbc, vitamin v\u00e0 c\u00e1c ch\u1ea5t ch\u1ed1ng oxy h\u00f3a, \u0111\u1ed3ng th\u1eddi h\u1ea1n ch\u1ebf tinh b\u1ed9t v\u00e0 \u0111\u01b0\u1eddng tinh luy\u1ec7n g\u00f3p ph\u1ea7n kh\u00f4ng nh\u1ecf gi\u00fap l\u00e0n da kh\u1ecfe m\u1ea1nh, ng\u0103n ng\u1eeba s\u1ea1m n\u00e1m.<\/p>\n<p align=\"center\"><span><img decoding=\"async\" class=\"news-image\" alt=\"Ch\u0103m s\u00f3c da \u0111\u00fang c\u00e1ch, k\u1ebft h\u1ee3p ch\u1ed1ng n\u1eafng v\u00e0 duy tr\u00ec l\u1ed1i s\u1ed1ng l\u00e0nh m\u1ea1nh, c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ng\u1eeba s\u1ea1m n\u00e1m, gi\u1eef l\u00e0n da s\u00e1ng v\u00e0 \u0111\u1ec1u m\u00e0u h\u01a1n.\" src=\"http:\/\/useful.vn\/wp-content\/uploads\/2026\/08\/1785746207-218796eb95-diem-danh-6-sai-lam-co-ban-khi-4607-6606-5602-width740height492.jpg\" width=\"740\" title=\"1785746207-218796eb95-diem-danh-6-sai-lam-co-ban-khi-4607-6606-5602-width740height492\"><\/span><\/p>\n<p class=\"img_chu_thich_0407\">Ch\u0103m s\u00f3c da \u0111\u00fang c\u00e1ch, k\u1ebft h\u1ee3p ch\u1ed1ng n\u1eafng v\u00e0 duy tr\u00ec l\u1ed1i s\u1ed1ng l\u00e0nh m\u1ea1nh, c\u00f3 th\u1ec3 gi\u00fap ng\u0103n ng\u1eeba s\u1ea1m n\u00e1m, gi\u1eef l\u00e0n da s\u00e1ng v\u00e0 \u0111\u1ec1u m\u00e0u h\u01a1n.<\/p>\n<p class=\"Normal\">Ki\u00ean tr\u00ec s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n ch\u0103m s\u00f3c da c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 c\u1ea3i thi\u1ec7n n\u00e1m v\u00e0 gi\u00fap da \u0111\u1ec1u m\u00e0u h\u01a1n. Axit kojic v\u00e0 axit azelaic c\u00f3 kh\u1ea3 n\u0103ng \u1ee9c ch\u1ebf m\u1ed9t s\u1ed1 enzyme quan tr\u1ecdng, t\u1eeb \u0111\u00f3 h\u1ea1n ch\u1ebf qu\u00e1 tr\u00ecnh s\u1ea3n sinh melanin. Vitamin C v\u00e0 c\u00e1c d\u1eabn xu\u1ea5t nh\u1edd \u0111\u1eb7c t\u00ednh ch\u1ed1ng oxy h\u00f3a c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 l\u00e0m gi\u1ea3m qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh s\u1eafc t\u1ed1.<\/p>\n<p class=\"Normal\">Trong khi \u0111\u00f3, niacinamide gi\u00fap h\u1ea1n ch\u1ebf s\u1ef1 v\u1eadn chuy\u1ec3n melanin l\u00ean c\u00e1c t\u1ebf b\u00e0o \u1edf l\u1edbp bi\u1ec3u b\u00ec, g\u00f3p ph\u1ea7n c\u1ea3i thi\u1ec7n nh\u1eefng v\u00f9ng da s\u1eabm m\u00e0u. C\u00e1c ho\u1ea1t ch\u1ea5t nh\u01b0 axit retinoic, glycolic v\u00e0 salicylic th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh thay m\u1edbi, bong c\u00e1c t\u1ebf b\u00e0o s\u1eebng ch\u1ee9a melanin tr\u00ean b\u1ec1 m\u1eb7t da, qua \u0111\u00f3 h\u1ed7 tr\u1ee3 l\u00e0m m\u1edd n\u00e1m v\u00e0 gi\u00fap l\u00e0n da tr\u00f4ng s\u00e1ng, \u0111\u1ec1u m\u00e0u h\u01a1n.<\/p>\n<p class=\"Normal\">C\u00e1c lo\u1ea1i tinh ch\u1ea5t l\u00e0m s\u00e1ng da th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec1u \u0111\u1eb7n \u00edt nh\u1ea5t m\u1ed9t th\u00e1ng m\u1edbi c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y s\u1ef1 c\u1ea3i thi\u1ec7n r\u00f5 r\u1ec7t v\u1ec1 t\u00f4ng da. V\u1edbi nh\u1eefng v\u00f9ng n\u00e1m l\u00e2u n\u0103m ho\u1eb7c kh\u00f3 c\u1ea3i thi\u1ec7n, th\u1eddi gian ch\u0103m s\u00f3c c\u00f3 th\u1ec3 k\u00e9o d\u00e0i h\u01a1n. Trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n thi\u1ebft, c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tr\u1ecb chuy\u00ean s\u00e2u nh\u01b0 laser, d\u01b0\u1edbi s\u1ef1 t\u01b0 v\u1ea5n v\u00e0 theo d\u00f5i c\u1ee7a b\u00e1c s\u0129 da li\u1ec5u.<\/p>\n<div class=\"bv-lq\">\n<div class=\"bv-lq-inner\">\n<div class=\"img-bv-lq imgFloat pos-rel\"><img decoding=\"async\" src=\"http:\/\/useful.vn\/wp-content\/uploads\/2026\/08\/adt1779844222-3b8f026461-chuom-mat-38817-9-0-885-1__anh_cat_3_2.png\" alt=\"N\u1eafng n\u00f3ng \u0111\u1ec9nh \u0111i\u1ec3m, ra ngo\u00e0i 10 ph\u00fat \u0111\u00e3 r\u00e1t da, chuy\u00ean gia h\u01b0\u1edbng d\u1eabn c\u00e1ch b\u1ea3o v\u1ec7 da kh\u1ecfi ch\u00e1y n\u1eafng\" class=\"img_tin_lien_quan_trong_bai width-100\" title=\"adt1779844222-3b8f026461-chuom-mat-38817-9-0-885-1__anh_cat_3_2\"><\/div>\n<div class=\"content-bv-lq\">\n<div class=\"title-bv\">\n                        N\u1eafng n\u00f3ng \u0111\u1ec9nh \u0111i\u1ec3m, ra ngo\u00e0i 10 ph\u00fat \u0111\u00e3 r\u00e1t da, chuy\u00ean gia h\u01b0\u1edbng d\u1eabn c\u00e1ch b\u1ea3o v\u1ec7 da kh\u1ecfi ch\u00e1y n\u1eafng\n                <\/div>\n<div class=\"ct-bv\">\n<p>Nh\u1eefng ng\u00e0y n\u1eafng n\u00f3ng c\u1ef1c \u0111oan l\u00e0m t\u0103ng nguy c\u01a1 ch\u00e1y n\u1eafng, s\u1ea1m da v\u00e0 t\u1ed5n th\u01b0\u01a1ng da. Ch\u1ec9 c\u1ea7n \u0111\u1ee9ng ngo\u00e0i tr\u1eddi kho\u1ea3ng 10 &#8211; 15 ph\u00fat v\u00e0o khung gi\u1edd n\u1eafng g\u1eaft,&#8230;<\/p>\n<\/div>\n<div class=\"see-now\">B\u1ea5m xem &gt;&gt;\n                <\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/article>\n<hr>\n<p>https:\/\/www.24h.com.vn\/dep\/nguyen-nhan-va-cach-cai-thien-da-sam-nam-c78a1783558.html<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c1nh n\u1eafng, n\u1ed9i ti\u1ebft t\u1ed1 v\u00e0 tu\u1ed5i t\u00e1c c\u00f3 th\u1ec3 khi\u1ebfn da s\u1ea1m n\u00e1m, song duy tr\u00ec l\u1ed1i s\u1ed1ng l\u00e0nh m\u1ea1nh v\u00e0 ch\u0103m s\u00f3c \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n. Nhi\u1ec1u ph\u1ee5 n\u1eef d\u00f9 ch\u0103m ch\u1ec9 thoa kem ch\u1ed1ng n\u1eafng m\u1ed7i ng\u00e0y song v\u1eabn g\u1eb7p t\u00ecnh tr\u1ea1ng da t\u0103ng s\u1eafc t\u1ed1, xu\u1ea5t hi\u1ec7n \u0111\u1ed1m<\/p>\n","protected":false},"author":1,"featured_media":11337,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-11336","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lam-dep"],"_links":{"self":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts\/11336","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11336"}],"version-history":[{"count":0,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts\/11336\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/media\/11337"}],"wp:attachment":[{"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11336"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11336"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11336"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}