{"id":5690,"date":"2025-07-11T11:49:52","date_gmt":"2025-07-11T11:49:52","guid":{"rendered":"https:\/\/www.isdin.com\/en-US\/blog\/?p=5690"},"modified":"2025-07-11T12:16:10","modified_gmt":"2025-07-11T12:16:10","slug":"what-are-free-radicals-how-do-they-affect-skin","status":"publish","type":"post","link":"https:\/\/www.isdin.com\/us\/blog\/skincare\/what-are-free-radicals-how-do-they-affect-skin\/","title":{"rendered":"What Are Free Radicals And How Do They Affect Skin?"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading:<\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>\n<p><\/p>\n\n\n\n<p>Free radicals. You\u2019ve probably heard about them\u2014often in the context of aging, pollution, or skincare. While they\u2019re a natural part of life, an excess of these unstable molecules can stress your skin and body in a process known as oxidative stress.<\/p>\n\n\n\n<p>That\u2019s where antioxidants come in. These powerful molecules are your body\u2019s built-in defense\u2014and they\u2019re also a key part of any effective skincare routine.<\/p>\n\n\n\n<p>Let\u2019s break down <strong>what free radicals are<\/strong>, <strong>how they impact your skin<\/strong>, and <strong>what antioxidants can do to help<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are free radicals?<\/h2>\n\n\n\n<p>At their core, free radicals are&nbsp;<strong>unstable atoms<\/strong>&nbsp;or molecules with an unpaired electron. That lone electron allows them to mingle&nbsp;with other molecules, which isn\u2019t always a good thing. Because electrons like to be in pairs, free radicals seek stability by interacting with\u2014and often damaging\u2014nearby cells, proteins, or DNA.<\/p>\n\n\n\n<p>Our body produces small amounts of free radicals naturally. But many times, they\u2019re triggered by outside sources like:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sun exposure (UV radiation)<\/li>\n\n\n\n<li>Air pollution<\/li>\n\n\n\n<li>Cigarette smoke<\/li>\n\n\n\n<li>Toxins and chemicals<\/li>\n\n\n\n<li>Stress and poor diet<\/li>\n<\/ul>\n\n\n\n<p>An overload of free radicals sets off something called&nbsp;<strong>oxidative stress<\/strong>. This biological chain reaction is a major contributor to premature skin aging and other visible skin concerns.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"527\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/en-US\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-1024x527.png\" alt=\"Oxidative stress explained ISDIN\" class=\"wp-image-9749 lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-1024x527.png 1024w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-300x155.png 300w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-150x77.png 150w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-768x396.png 768w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-1536x791.png 1536w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-2048x1055.png 2048w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-585x300.png 585w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-450x232.png 450w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-20x11.png 20w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-225x116.png 225w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-900x464.png 900w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-1350x695.png 1350w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG01-186x96.png 186w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-\"><\/h3>\n\n\n\n<h3 class=\"wp-block-heading\">Here\u2019s an example<\/h3>\n\n\n\n<p>Think of an apple that browns after being sliced. That change happens because of oxidation\u2014a chemical reaction involving free radicals and oxygen in the air. Something similar can happen in your skin when it\u2019s exposed to outside stressors without protection.<\/p>\n\n\n\n<p>One of the most common sources of oxidative stress on the skin? <strong>The sun.<\/strong> UV rays can accelerate free radical formation, overwhelming your body\u2019s defenses and speeding up signs of aging\u2014a phenomenon known as <strong>photoaging<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-free-radicals-affect-your-skin\">How free radicals affect your skin<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"527\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/en-US\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-1024x527.png\" alt=\"what free radicals do to skin\" class=\"wp-image-9751 lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-1024x527.png 1024w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-300x155.png 300w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-150x77.png 150w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-768x396.png 768w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-1536x791.png 1536w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-2048x1055.png 2048w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-585x300.png 585w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-450x232.png 450w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-20x11.png 20w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-225x116.png 225w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-900x464.png 900w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-1350x695.png 1350w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/2024_04_FreeRadicals_IMG02-186x96.png 186w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>When free radicals run unchecked, they can impact skin&nbsp;<a href=\"https:\/\/www.isdin.com\/en-US\/blog\/skincare\/layers-and-functions-of-skin\/\">from the inside out<\/a>. Here\u2019s what they (and the resulting oxidative stress) may lead to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dehydration:<\/strong> Increased water loss from the skin\u2019s surface, depleting your skin\u2019s much-needed moisture.<\/li>\n\n\n\n<li><strong>Uneven skin tone:<\/strong> Disruption in your skin\u2019s melanin production (the hormone that give you your unique skin tone).<\/li>\n\n\n\n<li><strong>Dullness:<\/strong> When cells have to put in the extra work to fight free radicals, it interrupts turnover.<\/li>\n\n\n\n<li><strong>A loss of firmness and elasticity:<\/strong> Damage to collagen, elastin, and other supportive proteins, contributing to wrinkles and sagging.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How can I help get rid of free radicals in my skin?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"618\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/How-can-I-help-get-rid-of-free-radicals-in-my-skin_.jpg\" alt=\"How can I help get rid of free radicals in my skin_\" class=\"wp-image-11177 lazyload\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Some free radicals are unavoidable. But antioxidants in skincare can help defend, adapt, and maintain your glow. Let\u2019s take a look.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What do antioxidants do?<\/h3>\n\n\n\n<p><strong>Antioxidants<\/strong> are molecules that help neutralize free radicals. They do this by safely donating an electron, stabilizing the free radical without becoming unstable themselves. This little act of kindness helps protect cells from damage and supports skin repair and renewal.<\/p>\n\n\n\n<p>That\u2019s why antioxidants are so important\u2014both inside the body and in your skincare routine. They help restore balance, reduce the impact of oxidative stress, and support the skin\u2019s natural defense mechanisms.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Antioxidants and free radicals: a balancing act<\/h3>\n\n\n\n<p>Here\u2019s the good news: Our bodies <a href=\"https:\/\/www.health.harvard.edu\/staying-healthy\/understanding-antioxidants\">naturally produce some antioxidants<\/a>\u2014like glutathione and certain enzymes\u2014to help fight oxidative damage. But with age and continued exposure to stressors like UV light and pollution, our natural defenses decline.<\/p>\n\n\n\n<p>That\u2019s where <strong>antioxidants in skincare<\/strong> come in. Topical antioxidants complement your body\u2019s natural systems and help protect skin from environmental damage.<\/p>\n\n\n\n<p>There are two main types:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Direct antioxidants<\/strong>, like <strong>vitamin C and E<\/strong>, which neutralize free radicals directly.<\/li>\n\n\n\n<li><strong>Indirect antioxidants<\/strong>, such as <strong>melatonin<\/strong>, which boost the skin\u2019s ability to repair oxidative damage.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-benefits-of-antioxidants-in-skincare\">Benefits of antioxidants in skincare<\/h3>\n\n\n\n<p>What a well-formulated antioxidant product can do:<\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"670\" height=\"683\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream.png\" alt=\"Woman applying antioxidant cream\" class=\"wp-image-11179 size-full lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream.png 670w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-294x300.png 294w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-147x150.png 147w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-70x70.png 70w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-450x459.png 450w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-20x20.png 20w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-225x229.png 225w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-cream-94x96.png 94w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><\/p>\n\n\n\n<p><strong>Defend against sun damage<\/strong><\/p>\n\n\n\n<p>In the top layer of the skin, we find keratinocytes: cells that can gather high concentrations of vitamin C. Together with vitamin E, this power couple helps shield skin from sun damage.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide has-media-on-the-right is-stacked-on-mobile\"><div class=\"wp-block-media-text__content\">\n<p><\/p>\n\n\n\n<p><strong>Minimize visible signs of skin aging<\/strong><\/p>\n\n\n\n<p>They help reduce oxidative stress, supporting your skin\u2019s building blocks\u2014collagen and elastin\u2014and contributing to firmer, smoother-looking skin.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"670\" height=\"683\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen.png\" alt=\"Woman applying antioxidant sunscreen\" class=\"wp-image-11180 size-full lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen.png 670w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-294x300.png 294w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-147x150.png 147w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-70x70.png 70w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-450x459.png 450w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-20x20.png 20w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-225x229.png 225w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-applying-antioxidant-sunscreen-94x96.png 94w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/figure><\/div>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-media-text alignwide is-stacked-on-mobile\" style=\"grid-template-columns:49% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"670\" height=\"683\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin.png\" alt=\"Woman with bright healthy skin\" class=\"wp-image-11181 size-full lazyload\" data-sizes=\"auto\" data-srcset=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin.png 670w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-294x300.png 294w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-147x150.png 147w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-70x70.png 70w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-450x459.png 450w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-20x20.png 20w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-225x229.png 225w, https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-bright-healthy-skin-94x96.png 94w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p><\/p>\n\n\n\n<p><strong>Brighten and unify skin tone<\/strong><\/p>\n\n\n\n<p>Certain antioxidants support the processes that distribute your skin\u2019s natural coloring, making them ideal for targeting dark spots, uneven tone, and dullness.<\/p>\n<\/div><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to add antioxidants to your skincare routine<\/h2>\n\n\n\n<p>To get the most out of antioxidant skincare, look for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.isdin.com\/us\/blog\/skincare\/serums-essential-skincare-guide\/\"><strong>Antioxidant serums<\/strong><\/a>: These potent, fast-absorbing formulas deliver targeted benefits. Use them in the morning and evening after cleansing.<\/li>\n\n\n\n<li><a href=\"https:\/\/www.isdin.com\/us\/blog\/skincare\/antioxidants-in-sunscreen\/\"><strong>Sunscreens with antioxidants<\/strong><\/a>: These multitaskers protect against UV rays while reinforcing your skin\u2019s defenses against oxidative stress.<\/li>\n<\/ul>\n\n\n\n<p>A consistent routine can make a big difference in helping your skin recover from and resist everyday damage.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are some of the best antioxidants for skin?<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-ad2f72ca wp-block-group-is-layout-flex\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"133\" height=\"102\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-src=\"https:\/\/lh5.googleusercontent.com\/IHt2ZIOTsXuxReiiFl9iIcWgz3SRrgBLg5L6w40H0Iu28UUyYK5IoI4Ah-1WvgIH8rOqkUqbv20FyqlILrLHvESLWMyuF9NCSTfYtyzPR6GfpWOd_YXw9_MdROwwiMJSyndoz2k2K4dpg8am3HqwG3ptVBAx9T_oLWfzjP1siH52hcdteKxqSPDXyQ\"><br><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p><strong>Vitamin C<\/strong><br><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>In skincare, <a href=\"https:\/\/www.isdin.com\/us\/blog\/isdinnovation\/what-is-vitamin-c-in-skincare\/\">Vitamin C<\/a> works as a powerful antioxidant to help\u00a0neutralize free radicals and protect against oxidative stress. Overall, it promotes glowy, healthy-looking skin. <strong>\u2728\u00a0Find it in\u00a0<a href=\"https:\/\/www.isdin.com\/us\/p\/melatonik\/2962\">Melatonik\u00ae<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-ad2f72ca wp-block-group-is-layout-flex\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"130\" height=\"101\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-src=\"https:\/\/lh6.googleusercontent.com\/J0LN88dlJ1JCno4OZLo0NMxMO6v6F4mbQwpvZnzKzZH1dmMSOdPdV_abBupRr_fPSF0_5De7zEKjiTlcxR_1ZYIqoA4FPdpgu5AywmjOITmbPSX5cKDTadU3CWfhkK5L19FFwn4r6zf_7O_F7-QnjuKcSTSsU6wUeHqTBmHh6aL5i9Pyqc7VKmMVNQ\"><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p><strong>Niacinamide<\/strong><br><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p><strong>Known for improving tone and texture<\/strong>, <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/16029679\/\">science shows<\/a>\u00a0that this multitasker helps reduce discoloration, support the skin barrier, and boost luminosity. <strong data-l-s=\"98443\">\u2728\u00a0Find it in\u00a0<a href=\"https:\/\/www.isdin.com\/us\/p\/melaclear-advanced\/3455\">Melaclear Advanced<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-ad2f72ca wp-block-group-is-layout-flex\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"147\" height=\"114\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-src=\"https:\/\/lh6.googleusercontent.com\/AfzQR6gO6WNMXlDGszo6dvITArWCvHWwmSs3w8ZExXq1DbKGJbd_B_aLcDfgR2s9LaqbBXLsNhKVsh3WBX0lrc_5t2aRJW0KKwG31RJQ2sCvj1wuCHBora_RwYbIWQ7tLINeXWQNsWQeX8XUqjaGNUEYq6gyM65eDBUu-w2uR3fUQCdK7t5X0xQVYg\"><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p><strong><em>Ginkgo biloba<\/em> extract <\/strong><br><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>A natural source of polyphenols, this botanical helps protect skin from oxidative damage and supports a more even tone. <strong data-l-s=\"80669\">\u2728\u00a0Find it in\u00a0<a href=\"https:\/\/www.isdin.com\/us\/p\/flavo-c-serum\/1449\">Flavo-C Serum<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group is-horizontal is-nowrap is-layout-flex wp-container-core-group-is-layout-41b81202 wp-block-group-is-layout-flex\">\n<p><img loading=\"lazy\" decoding=\"async\" width=\"139\" height=\"108\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-src=\"https:\/\/lh6.googleusercontent.com\/oaKTMADJnN1P1VKjOPmBRNou763hWWJfgxXx72ejKqCqcIjRwuojXpC2EAPl6iDQ-rIo4awZDgjpx-FiVYnXgQzl7uN5B5-OnRBMToH_pCgF0wKJaizyXorkndYo7qUPK-PX-Eo-1bA3720jEnPK3NmCURHFl7lQmxBabXguloyYw5AOBuBG-Ko6hw\"><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<p><strong>Melatonin<\/strong><br><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<p>You may have heard of <a href=\"https:\/\/www.isdin.com\/us\/blog\/isdinnovation\/what-is-melatonin-how-your-skin-repairs-itself-at-night\/\">melatonin<\/a> as the hormone which helps to regulate your sleep\/wake cycle. But in skincare, it also helps wake up antioxidant enzymes\u2014working to\u00a0<strong>block free radicals and repair oxidative damage.<\/strong> <strong data-l-s=\"2826\">\u2728\u00a0Find it in\u00a0<a href=\"https:\/\/www.isdin.com\/en-US\/face-care\/3-in-1-night-serum-isdinceutics-melatonik-8429420114609.html\">Melatonik\u00ae<\/a><\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Protect your glow<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"618\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/Woman-with-glowing-skin.jpg\" alt=\"Woman with glowing skin\" class=\"wp-image-11182 lazyload\"\/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Every day brings exposure to stressors like sunlight, pollution, and time\u2014but your skin doesn\u2019t have to face them alone. With the support of antioxidants, you\u2019re giving it the tools it needs to stay healthy and radiant.<\/p>\n\n\n\n<p>Think of your skincare routine as a daily act of kindness. With each step, you&#8217;re giving your skin the care it deserves and protecting the story it tells. Add antioxidants to your ritual, don\u2019t forget your daily SPF, <strong>and remember to thank your skin for all it does.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n\n\n\n<p><strong>References:<\/strong><\/p>\n\n\n\n<ol style=\"background-color:#eeeeee\" class=\"wp-block-list has-background\">\n<li>Polj\u0161ak, B., Dahmane, R. Free Radicals and Extrinsic Skin Aging. In&nbsp;<em>Dermatology Research and Practice<\/em>, Hindawi Publishing Corporation, Vol. 2012, Article ID 135206.<\/li>\n\n\n\n<li>Pai, VV., Skukla, P., Kikkeri, NN. Antioxidants in dermatology. In&nbsp;<em>Indian Dermatology Online Journal<\/em>. 2014 Apr-Jun; 5(2): 210\u2013214.<\/li>\n\n\n\n<li>Starr, JM., Starr, RJ. Skin Aging and Oxidative Stress. In&nbsp;<em>Aging: Oxidative Stress and Dietary Antioxidants<\/em>, 2014 Academic Press.<\/li>\n\n\n\n<li>Pullar, JM., Carr, AC., Vissers, MCM. The Roles of Vitamin C in Skin Health. In&nbsp;<em>Nutrients<\/em>, 2017 Aug; 9(8): 866.<\/li>\n\n\n\n<li>Bissett, DL. PhD, Oblong, JE. PhD, Cynthia, A., Berge, BS. Niacinamide: A B Vitamin that Improves Aging Facial Skin Appearance. In&nbsp;<em>Dermatologic Surgery<\/em>, (2005) Vol. 31, Issue S1 (860-866).<\/li>\n\n\n\n<li>Fischer TW, Elsner P. The antioxidative potential of melatonin in the skin. In&nbsp;<em>Current Problems in Dermatol<\/em>ogy 29:165-174<\/li>\n\n\n\n<li>Nichols, JA., Katiyar, SK. Skin photoprotection by natural polyphenols: Anti-inflammatory, anti-oxidant and DNA repair mechanisms. In&nbsp;<em>Arch Dermatol Res<\/em>. 2010 Mar; 302(2); 71.<\/li>\n<\/ol>\n\n\n\n<p style=\"font-size:10px\"><br><br><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Let\u2019s take a look at what free radicals are and how you can combat their effects with a daily skincare routine including antioxidants.<\/p>\n","protected":false},"author":63,"featured_media":11178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[2461,2458],"tags":[1502,2398],"class_list":["post-5690","post","type-post","status-publish","format-image","has-post-thumbnail","hentry","category-skincare","category-your-skin","tag-aging","tag-free-radicals","post_format-post-format-image"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.0 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>What Are Free Radicals And How Do They Affect Skin? | ISDIN<\/title>\n<meta name=\"description\" content=\"Free radicals are everywhere, especially in skincare product descriptions! Ever wondered what a free radical is? Our post explains it all...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.isdin.com\/us\/blog\/skincare\/what-are-free-radicals-how-do-they-affect-skin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Are Free Radicals And How Do They Affect Skin?\" \/>\n<meta property=\"og:description\" content=\"Free radicals are everywhere, especially in skincare product descriptions! Ever wondered what a free radical is? Our post explains it all...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.isdin.com\/us\/blog\/skincare\/what-are-free-radicals-how-do-they-affect-skin\/\" \/>\n<meta property=\"og:site_name\" content=\"ISDIN Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/isdinusa\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-11T11:49:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-11T12:16:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.isdin.com\/us\/blog\/wp-content\/uploads\/2024\/04\/What-Are-Free-Radicals_-And-How-Antioxidants-Can-Help-Protect-Your-Skin.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"760\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Amy Ingraham\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@isdinusa\" \/>\n<meta name=\"twitter:site\" content=\"@isdinusa\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Amy Ingraham\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/\"},\"author\":{\"name\":\"Amy Ingraham\",\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/#\\\/schema\\\/person\\\/ea598d8640c1c505cbae2db74d8dc20d\"},\"headline\":\"What Are Free Radicals And How Do They Affect Skin?\",\"datePublished\":\"2025-07-11T11:49:52+00:00\",\"dateModified\":\"2025-07-11T12:16:10+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/\"},\"wordCount\":1166,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/What-Are-Free-Radicals_-And-How-Antioxidants-Can-Help-Protect-Your-Skin.jpg\",\"keywords\":[\"aging\",\"free radicals\"],\"articleSection\":[\"Skincare\",\"Your skin\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/\",\"url\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/\",\"name\":\"What Are Free Radicals And How Do They Affect Skin? | ISDIN\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/skincare\\\/what-are-free-radicals-how-do-they-affect-skin\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.isdin.com\\\/us\\\/blog\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/What-Are-Free-Radicals_-And-How-Antioxidants-Can-Help-Protect-Your-Skin.jpg\",\"datePublished\":\"2025-07-11T11:49:52+00:00\",\"dateModified\":\"2025-07-11T12:16:10+00:00\",\"description\":\"Free radicals are everywhere, especially in skincare product descriptions! 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