{"product_id":"isntree-hyper-vitamin-c-23-serum","title":"ISNTREE Hyper Vitamin C 23 Serum","description":"\u003cp\u003e\u003cstrong\u003eISNTREE Hyper Vitamin C 23 Serum (20ml)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA high-potency Korean Vitamin C serum formulated with 23% pure Vitamin C to visibly brighten dull-looking skin, improve the appearance of uneven skin tone, and promote a clearer, more radiant complexion. ISNTREE Hyper Vitamin C 23 Serum combines concentrated Ascorbic Acid with Ethyl Ascorbyl Ether, Birch Juice, Betaine, Panthenol, and Tocopherol for intensive antioxidant and radiance-focused skincare.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the formula is 23% pure Ascorbic Acid, a powerful form of Vitamin C known for its antioxidant and brightening properties. This concentrated formula is designed for users looking for more intensive care for visible dullness, uneven tone, and post-blemish discoloration.\u003c\/p\u003e\n\u003cp\u003eEthyl Ascorbyl Ether, a stabilized Vitamin C derivative, complements the 23% pure Vitamin C to provide additional antioxidant and brightening care. Together, they help promote a fresher, clearer, and more luminous-looking complexion.\u003c\/p\u003e\n\u003cp\u003eTo balance the high-strength Vitamin C formula, ISNTREE includes Betaine, Hydroxyethyl Urea, Japanese White Birch Juice, and Panthenol to provide moisturizing and soothing care. Tocopherol, also known as Vitamin E, provides additional antioxidant support.\u003c\/p\u003e\n\u003cp\u003eThe lightweight serum absorbs quickly and layers easily into an evening or daytime skincare routine. With continued use, it helps skin appear brighter, smoother, and more even while providing concentrated antioxidant care against everyday environmental stress.\u003c\/p\u003e\n\u003cp\u003eBecause of its high 23% pure Vitamin C concentration, this serum is best suited to experienced Vitamin C users or those seeking an intensive brightening treatment. Sensitive skin should introduce it gradually and monitor skin tolerance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003e23% Pure Vitamin C – A high concentration of Ascorbic Acid provides intensive antioxidant and brightening care for dull, uneven-looking skin.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eHelps Improve Uneven Skin Tone – Concentrated Vitamin C helps improve the appearance of uneven tone and visible discoloration for a clearer-looking complexion.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eDual Vitamin C Care – Pure Ascorbic Acid works alongside Ethyl Ascorbyl Ether, a Vitamin C derivative, for comprehensive radiance and antioxidant care.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eBrightens Dull-Looking Skin – Designed to restore the appearance of freshness and luminosity when the complexion looks tired or lackluster.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003ePost-Blemish Mark Care – Vitamin C helps improve the appearance of lingering post-blemish discoloration and uneven-looking areas over time.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eBirch Juice Hydration – Betula Platyphylla Japonica Juice provides moisturizing and conditioning care to complement the high-strength Vitamin C formula.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eBetaine \u0026amp; Hydroxyethyl Urea – Moisturizing ingredients help maintain hydration and reduce the dry feeling that can accompany highly concentrated active formulas.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003ePanthenol Soothing Care – Panthenol provides additional moisturizing and soothing support for a more comfortable skincare experience.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eVitamin E Antioxidant Support – Tocopherol complements Vitamin C with additional antioxidant and skin-conditioning benefits.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• \u003cstrong\u003eHigh-Potency Brightening Treatment – Ideal for experienced active-skincare users seeking a concentrated Vitamin C serum for tone, radiance, and antioxidant care.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAfter cleansing and toner, dispense \u003cstrong\u003e2–3 drops\u003c\/strong\u003e of ISNTREE Hyper Vitamin C 23 Serum onto the palm and gently apply over the face. Pat lightly until fully absorbed.\u003c\/p\u003e\n\u003cp\u003eBecause the formula contains a high \u003cstrong\u003e23% concentration of pure Vitamin C\u003c\/strong\u003e, ISNTREE recommends beginning with use approximately \u003cstrong\u003eonce every 3–4 days\u003c\/strong\u003e, particularly if you are new to concentrated Vitamin C products. Gradually adjust frequency according to your skin's tolerance.\u003c\/p\u003e\n\u003cp\u003eFor daytime use, always follow with a broad-spectrum sunscreen.\u003c\/p\u003e\n\u003cp\u003eDue to the nature of pure Vitamin C, store the serum in a \u003cstrong\u003ecool, dark place away from direct sunlight and heat\u003c\/strong\u003e. Keep the bottle tightly closed when not in use to help minimize oxidation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIngredients\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWater, Ascorbic Acid (23%), Propanediol, Betaine, 1,2-Hexanediol, Polyglycerin-3, Tromethamine, Ethyl Ascorbyl Ether, Hydroxyethyl Urea, Betula Platyphylla Japonica Juice, Ethylhexylglycerin, Adenosine, Disodium EDTA, Panthenol, Gardenia Florida Fruit Extract, Dextrin, Tocopherol.\u003c\/p\u003e","brand":"ISNTREE","offers":[{"title":"Default Title","offer_id":49495484891395,"sku":"IHVCS-SERUM","price":26.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/8042\/3939\/files\/ISNTREE_Hyper_Vitamin_C_23_Serum_2.png?v=1789330158","url":"https:\/\/seoulea.us\/products\/isntree-hyper-vitamin-c-23-serum","provider":"Seouléa HQ","version":"1.0","type":"link"}