{"product_id":"kiehls-powerful-strength-vitamin-c-face-serum-12-5-vitamin-c-with-hyaluronic-acid-lightweight-brightening-texture-improving","title":"Kiehl's Powerful-Strength Vitamin C Face Serum — 12.5% Vitamin C with Hyaluronic Acid, Lightweight Brightening \u0026 Texture-Improving","description":"\u003cp\u003e\u003cstrong\u003eKiehl's Powerful-Strength Vitamin C Face Serum is a lightweight, daily serum with 12.5% pure Vitamin C and hyaluronic acid designed to brighten skin, improve texture, and reduce the appearance of fine lines and deep-set wrinkles.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis face serum combines a concentrated dose of L-ascorbic acid (12.5% Vitamin C) with hydrating hyaluronic acid in a stable, patent-backed formula. It’s formulated to deliver antioxidant support while smoothing and firming skin over time. Clinical testing over eight weeks shows measurable improvements in texture and radiance, with visible reductions in fine lines from two weeks and deeper wrinkle improvements over a month.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I see results from this Vitamin C serum?\u003c\/h3\u003e\n\u003cp\u003eResults follow a progressive timeline based on clinical testing: immediate improvements in texture and radiance were recorded, with noticeable reduction in fine lines after two weeks and further reduction in deeper wrinkles after four weeks. Consistent twice-daily use supports these outcomes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImmediate: texture and surface radiance improvements reported.\u003c\/li\u003e\n  \u003cli\u003e2 weeks: visible reduction in fine lines.\u003c\/li\u003e\n  \u003cli\u003e4 weeks: reductions in deeper, set-in wrinkles.\u003c\/li\u003e\n  \u003cli\u003e8 weeks: sustained improvements in overall skin smoothness and firmness per study results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key ingredients and how do they help my skin?\u003c\/h3\u003e\n\u003cp\u003eThe serum centers on 12.5% pure Vitamin C (L-ascorbic acid) for antioxidant support and brightness, paired with hyaluronic acid to attract and hold moisture. The combination aims to brighten dull skin, improve texture, and plump the look of fine lines without feeling heavy.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12.5% L-ascorbic acid: concentrated antioxidant to boost radiance and help even skin tone.\u003c\/li\u003e\n  \u003cli\u003eHyaluronic acid: hydrates and helps plump the skin surface for smoother appearance.\u003c\/li\u003e\n  \u003cli\u003ePatented stable formula: maintains Vitamin C potency while being suitable for many skin types.\u003c\/li\u003e\n  \u003cli\u003eLightweight texture: absorbs quickly under moisturizers and sunscreen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I add this serum into my daily routine?\u003c\/h3\u003e\n\u003cp\u003eUse the serum morning and night after cleansing and toning and before applying moisturizer. Dispense two pumps, smooth over the face avoiding the immediate eye area, and follow with your regular hydration and sun protection in the morning.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWhen: morning and evening after cleansing and toning.\u003c\/li\u003e\n  \u003cli\u003eHow much: two pumps per application for full-face coverage.\u003c\/li\u003e\n  \u003cli\u003eOrder: serum first, then moisturizer, then sunscreen in daytime routines.\u003c\/li\u003e\n  \u003cli\u003ePatch test: advisable for sensitive skin before full use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this serum suitable for sensitive or all skin types?\u003c\/h3\u003e\n\u003cp\u003eThe formula is designed to be highly stable and to balance a potent Vitamin C concentration with a lightweight, hydrating base that many skin types can tolerate. Sensitive skin users should introduce the product gradually and perform a patch test to confirm comfort.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable: formulated for all skin types, including those prone to sensitivity.\u003c\/li\u003e\n  \u003cli\u003eStability: patented formula helps preserve Vitamin C effectiveness.\u003c\/li\u003e\n  \u003cli\u003eIntroduce slowly: start with once-daily use if you have reactive skin.\u003c\/li\u003e\n  \u003cli\u003eAvoid contact: keep product away from the immediate eye area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This serum is for anyone seeking a concentrated Vitamin C treatment that targets dullness, uneven texture, and the visible appearance of lines and wrinkles while delivering hydration. It suits people who want a stable, clinically tested antioxidant boost that layers easily under moisturizers and sunscreen—especially those committed to a twice-daily skincare routine and gradual improvement over weeks.\u003c\/p\u003e\n\u003ch3\u003eIngredients\u003c\/h3\u003e\n\u003cp\u003ePropylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Ethylhexyl Palmitate, Cetyl PEG\/PPG-10\/1 Dimethicone, Dimethicone Crosspolymer, Ascorbyl Glucoside, Cyclohexasiloxane, Hydroxyethylpiperazine Ethane Sulfonic Acid, Lauroyl Lysine, Acrylonitrile\/Methyl Methacrylate\/Vinylidene Chloride Copolymer, Polysilicone-11, Adenosine, Hydrolyzed Hyaluronic Acid, Limonene, Isobutane, Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Limon Peel Oil\/Lemon Peel Oil, Citral, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What percentage of Vitamin C is in this serum?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This formula contains 12.5% pure Vitamin C (L-ascorbic acid).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use it under sunscreen daily?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—apply the serum before moisturizer and sunscreen in your daytime routine.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Kiehl's","offers":[{"title":"Default Title","offer_id":49622678601866,"sku":"B078Y96B22","price":202.09,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/4825\/6394\/files\/kiehls-bottle-front-packaging.jpg?v=1782873328","url":"https:\/\/auviraskincare.com\/products\/kiehls-powerful-strength-vitamin-c-face-serum-12-5-vitamin-c-with-hyaluronic-acid-lightweight-brightening-texture-improving","provider":"Auvira Beauty","version":"1.0","type":"link"}