{"product_id":"obagi-medical-professional-c-vitamin-c-serum-20-0-42-oz-high-potency-l-ascorbic-acid-for-brightening-reducing-fine-lines","title":"Obagi Medical Professional‑C Vitamin C Serum 20% — 0.42 oz high‑potency L‑ascorbic acid for brightening \u0026 reducing fine lines","description":"\u003cstrong\u003eObagi Professional‑C 20% Vitamin C Serum is a clinical‑strength L‑ascorbic acid formula designed to brighten skin tone and help reduce the look of fine lines and wrinkles.\u003c\/strong\u003e\n\n\u003cp\u003eThis concentrated serum from Obagi Medical delivers one of the highest stable doses of pure Vitamin C in a compact 0.42 oz bottle. Formulated to work at an optimized pH for stability and skin penetration, it targets uneven tone and signs of aging while supporting the skin’s barrier against environmental stressors. Clinically tested and dermatologist‑evaluated, it’s intended as a step in a professional skincare routine rather than a standalone treatment.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will I notice brighter skin?\u003c\/h3\u003e\n\u003cp\u003eIndividual results vary, but many users report visible improvements in radiance and hydration within weeks of consistent use. The high L‑ascorbic acid concentration is aimed at accelerating antioxidant effects that help even tone and reduce dullness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh‑potency 20% L‑ascorbic acid for rapid antioxidant activity\u003c\/li\u003e\n  \u003cli\u003eOptimized pH to improve stability and skin absorption\u003c\/li\u003e\n  \u003cli\u003eClinically tested formula with consumer study results on brightness\u003c\/li\u003e\n  \u003cli\u003eBest used daily in AM under sunscreen for protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this serum suitable for sensitive or acne‑prone skin?\u003c\/h3\u003e\n\u003cp\u003eThe formula contains pure Vitamin C at a strong concentration, so people with sensitive skin should introduce it gradually and monitor tolerance. For acne‑prone skin, it can be beneficial because Vitamin C supports repair and barrier strength, but patch testing is recommended.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStart with alternate‑day application if sensitivity is a concern\u003c\/li\u003e\n  \u003cli\u003ePerform a patch test behind the ear or inner forearm first\u003c\/li\u003e\n  \u003cli\u003eAvoid concurrent use with strong exfoliants until tolerance is established\u003c\/li\u003e\n  \u003cli\u003eConsult a dermatologist when combining with prescription treatments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I incorporate it into my skincare routine?\u003c\/h3\u003e\n\u003cp\u003eApply the serum after cleansing and toning but before heavier creams and sunscreen. Use a few drops and allow it to absorb fully; follow with moisturizer and, in the morning, broad‑spectrum sunscreen to protect results.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCleansed, dry skin before application maximizes penetration\u003c\/li\u003e\n  \u003cli\u003eUse morning to complement sunscreen protection and evening if preferred\u003c\/li\u003e\n  \u003cli\u003ePair with hydrating and barrier‑supporting moisturizers for comfort\u003c\/li\u003e\n  \u003cli\u003eStore in a cool, dark place to prolong potency\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes Obagi’s 20% Vitamin C different from other serums?\u003c\/h3\u003e\n\u003cp\u003eObagi’s Professional‑C uses pure L‑ascorbic acid at a concentration and pH designed for clinical effectiveness and skin permeability. The brand’s medical background and clinical testing contribute to formulation choices aimed at consistent performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUses pharmaceutical‑grade L‑ascorbic acid, the gold standard of Vitamin C\u003c\/li\u003e\n  \u003cli\u003eFormulated at pH levels shown to improve stability and efficacy\u003c\/li\u003e\n  \u003cli\u003eBacked by clinical and consumer testing in Obagi’s product development\u003c\/li\u003e\n  \u003cli\u003ePhysician endorsed and commonly recommended in professional regimens\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Obagi Professional‑C 20% Vitamin C Serum is best suited for adults seeking a medically rooted, high‑strength antioxidant step to address dullness, uneven tone, and early signs of aging. It’s ideal for those willing to introduce a potent active gradually, follow with sunscreen, and who appreciate dermatologist‑tested, clinically oriented skincare solutions.\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: Can I use this every day?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes; many use it daily. Start with alternate days if you have sensitive skin and build up to daily use as tolerated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Should I apply it morning or night?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It can be used either time, but morning use plus sunscreen helps protect skin from daytime environmental stressors.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Obagi Medical","offers":[{"title":"Default Title","offer_id":51487931039977,"sku":"B09XWK4FNC","price":214.44,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/7674\/2633\/files\/obagi-professional-c-20-front-packaging.jpg?v=1783295806","url":"https:\/\/cervaaustralia.com\/products\/obagi-medical-professional-c-vitamin-c-serum-20-0-42-oz-high-potency-l-ascorbic-acid-for-brightening-reducing-fine-lines","provider":"Cerva Australia | Professional Beauty Supplies, Skincare \u0026 Cosmetics","version":"1.0","type":"link"}