{"id":30731,"date":"2024-09-05T16:11:59","date_gmt":"2024-09-05T14:11:59","guid":{"rendered":"https:\/\/www.tomyklou.ch\/product\/import-placeholder-for-28663\/"},"modified":"2026-08-04T08:47:51","modified_gmt":"2026-08-04T06:47:51","slug":"cosrx-the-vitamin-c-23-serum","status":"publish","type":"product","link":"https:\/\/tomyklou.ch\/en\/product\/cosrx-the-vitamin-c-23-serum\/","title":{"rendered":"COSRX The Vitamin C 23 Serum 20g"},"content":{"rendered":"

Application<\/h3>\n
    \n
  1. After cleansing, during the serum phase, apply a few drops to the skin.<\/li>\n
  2. Use fingertips to gently massage and absorb the serum, starting from the center of the face working towards the edges.<\/li>\n<\/ol>\n

    Key Ingredients<\/h3>\n

    Water, Ascorbic Acid(23%), Propanediol, Dimethicone, Tromethamine, Panthenol, Ethyl Ascorbyl Ether, Squalane, Caffeine, Sodium Chloride, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Acetyl Glucosamine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Tocotrienols, Tocopherol, Elaeis Guineensis (Palm) Oil, Butylene Glycol, Arginine, Niacinamide, Pentylene Glycol, Alcohol Denat., Helianthus Annuus (Sunflower) Seed Oil, Glycyrrhiza Glabra (Licorice) Root Extract, Methyl Trimethicone, Carthamus Tinctorius (Safflower) Seed Oil, Camellia Japonica Seed Oil, Daucus Carota Sativa (Carrot) Root Extract, Beta-Carotene<\/p>\n

    Caution<\/h3>\n
      \n
    1. For external use only.<\/li>\n
    2. Do not use on damaged or broken skin.<\/li>\n
    3. If rash occurs, stop use and contact a doctor.<\/li>\n
    4. Avoid contact with eyes. In case of contact with eyes, rinse immediately and thoroughly.<\/li>\n
    5. Keep out of reach of children.<\/li>\n
    6. Do not swallow. If swallowed, seek medical help or contact a Poison Control Center immediately.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

      Hypoallergenic 23% pure vitamin C
      \nAntioxidant brightening booster with high performance for preventing early signs of aging
      \nBenefits:<\/strong><\/p>\n

        \n
      • Fade acne scars and hyperpigmentation<\/li>\n
      • Brightens dull skin<\/li>\n
      • Firms and plumps<\/li>\n
      • Diminishes finelines and wrinkles<\/li>\n<\/ul>\n

        Targets::<\/strong><\/p>\n

          \n
        • Dull skin<\/li>\n
        • Uneven skintone<\/li>\n
        • Dark spots and hyperpigmentation<\/li>\n
        • Early signs of aging<\/li>\n<\/ul>\n

          Key Ingredients:<\/strong><\/p>\n

            \n
          • 23% Pure Vitamin C (Ascorbic acid): <\/strong>Antioxidant activity, brightening(improve blemishes and brighten skin), reduce wrinkles and enhance elasticity.<\/li>\n
          • Super vitamin E(Tocotrienol): <\/strong>50 times higher antioxidant activities than tocopherol, stimulate collagen production.<\/li>\n
          • Hyaluronic acid: <\/strong>Strong moisture retention properties to maintain hydration.<\/li>\n
          • Allantoin: <\/strong>Soothes and relieves irritation.<\/li>\n<\/ul>\n","protected":false},"featured_media":30766,"comment_status":"open","ping_status":"closed","template":"","meta":{"content-type":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[921,43,407],"product_tag":[923],"class_list":["post-30731","product","type-product","status-publish","has-post-thumbnail","product_cat-facial-serum","product_cat-cosrx","product_cat-facial-care","product_tag-serum","desktop-align-center","tablet-align-center","mobile-align-center","first","outofstock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\nCOSRX The Vitamin C 23 Serum 20g<\/title>\n<meta name=\"description\" content=\"Hypoallergenic 23% pure vitamin C Antioxidant brightening booster with high performance for preventing early signs of aging Benefits: Fade acne scars and hyperpigmentation Brightens dull skin Firms and plumps Diminishes finelines and wrinkles Targets:: Dull skin Uneven skintone Dark spots and hyperpigmentation Early signs of aging Key Ingredients: 23% Pure Vitamin C (Ascorbic acid): Antioxidant activity, brightening(improve blemishes and brighten skin), reduce wrinkles and enhance elasticity. Super vitamin E(Tocotrienol): 50 times higher antioxidant activities than tocopherol, stimulate collagen production. Hyaluronic acid: Strong moisture retention properties to maintain hydration. Allantoin: Soothes and relieves irritation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"COSRX The Vitamin C 23 Serum 20g\" \/>\n<meta property=\"og:description\" content=\"Hypoallergenic 23% pure vitamin C Antioxidant brightening booster with high performance for preventing early signs of aging Benefits: Fade acne scars and hyperpigmentation Brightens dull skin Firms and plumps Diminishes finelines and wrinkles Targets:: Dull skin Uneven skintone Dark spots and hyperpigmentation Early signs of aging Key Ingredients: 23% Pure Vitamin C (Ascorbic acid): Antioxidant activity, brightening(improve blemishes and brighten skin), reduce wrinkles and enhance elasticity. Super vitamin E(Tocotrienol): 50 times higher antioxidant activities than tocopherol, stimulate collagen production. Hyaluronic acid: Strong moisture retention properties to maintain hydration. Allantoin: Soothes and relieves irritation.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/tomyklou.ch\/en\/product\/cosrx-the-vitamin-c-23-serum\/\" \/>\n<meta property=\"og:site_name\" content=\"Tomy Klou | TLK GROUP | Switzerland\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-04T06:47:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/tomyklou.ch\/wp-content\/uploads\/2024\/09\/COSRX-The-Vitamin-C-23-Serum.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1500\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/\",\"url\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/\",\"name\":\"COSRX The Vitamin C 23 Serum 20g - Tomy Klou | TLK GROUP | Switzerland\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/tomyklou.ch\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/COSRX-The-Vitamin-C-23-Serum.jpg\",\"datePublished\":\"2024-09-05T14:11:59+00:00\",\"dateModified\":\"2026-08-04T06:47:51+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/#primaryimage\",\"url\":\"https:\\\/\\\/tomyklou.ch\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/COSRX-The-Vitamin-C-23-Serum.jpg\",\"contentUrl\":\"https:\\\/\\\/tomyklou.ch\\\/wp-content\\\/uploads\\\/2024\\\/09\\\/COSRX-The-Vitamin-C-23-Serum.jpg\",\"width\":1500,\"height\":1500},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/product\\\/cosrx-the-vitamin-c-23-serum\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Tomy Klou unlock your Beauty\",\"item\":\"https:\\\/\\\/tomyklou.ch\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/tomyklou.ch\\\/product\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"COSRX The Vitamin C 23 Serum 20g\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/\",\"name\":\"Tomy Klou | TLK GROUP | Switzerland\",\"description\":\"Cosmetics Unlock Your Beauty | Kosmetik\",\"publisher\":{\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/#organization\",\"name\":\"Tomy Klou\",\"url\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.tomyklou.ch\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/logo-email.jpg\",\"contentUrl\":\"https:\\\/\\\/www.tomyklou.ch\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/logo-email.jpg\",\"width\":150,\"height\":60,\"caption\":\"Tomy Klou\"},\"image\":{\"@id\":\"https:\\\/\\\/tomyklou.ch\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"COSRX The Vitamin C 23 Serum 20g","description":"Hypoallergenic 23% pure vitamin C Antioxidant brightening booster with high performance for preventing early signs of aging Benefits: Fade acne scars and hyperpigmentation Brightens dull skin Firms and plumps Diminishes finelines and wrinkles Targets:: Dull skin Uneven skintone Dark spots and hyperpigmentation Early signs of aging Key Ingredients: 23% Pure Vitamin C (Ascorbic acid): Antioxidant activity, brightening(improve blemishes and brighten skin), reduce wrinkles and enhance elasticity. 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