{"product_id":"cosrx-the-vitamin-c-23-serum-20ml","title":"COSRX The Vitamin C 23 Serum 20ml","description":"\u003cp\u003eThe \u003cstrong\u003eCOSRX The Vitamin C 23 Serum\u003c\/strong\u003e is a high-potency brightening serum formulated with \u003cstrong\u003e23% pure ascorbic acid (L-Vitamin C)\u003c\/strong\u003e — one of the highest vitamin C concentrations available in a consumer serum — to visibly brighten dull skin, fade dark spots and deliver powerful antioxidant protection against environmental damage.\u003c\/p\u003e\u003cp\u003ePure ascorbic acid is the most potent and research-backed form of vitamin C in skincare. At 23%, this serum is designed for those who want fast, visible brightening results. The formula includes niacinamide and panthenol to support the skin barrier alongside the high-concentration active.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e23% pure vitamin C delivers high-potency brightening and antioxidant protection\u003c\/li\u003e\n\u003cli\u003eVisibly fades dark spots, hyperpigmentation and post-acne marks\u003c\/li\u003e\n\u003cli\u003eProtects against UV-related pigmentation and environmental oxidative stress\u003c\/li\u003e\n\u003cli\u003eNiacinamide and panthenol support barrier health alongside the active\u003c\/li\u003e\n\u003cli\u003eImproves overall skin radiance and clarity with consistent use\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWho It's For\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eExperienced vitamin C users wanting maximum brightening efficacy. Not recommended for beginners or those with very sensitive skin — start with The Vitamin C 13 Serum if new to vitamin C.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow To Use\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAfter cleansing and toning, apply a small amount to the face and pat gently until absorbed. Use in the morning before SPF. Start every other day and increase to daily as tolerated. Always apply SPF — vitamin C increases photosensitivity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePro Tip\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eStore in a cool, dark place and use within 3 months of opening to maintain potency. If the formula begins to turn yellow or orange, it has oxidised and should be replaced.\u003c\/p\u003e","brand":"COSRX","offers":[{"title":"Default Title","offer_id":48002990735604,"sku":"568038_J8EA44","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/1348\/0436\/files\/1719814221463_c7f12ae0dc624896acc40a9e7394fee3.png?v=1776241091","url":"https:\/\/areumda.com\/products\/cosrx-the-vitamin-c-23-serum-20ml","provider":"areumda","version":"1.0","type":"link"}