{"product_id":"pure-vitamin-c-serum-15-brightening-antioxidant-iontophoresis-serum","title":"Inderma Pure Vitamin C Serum 15% | Brightening \u0026 Antioxidant Iontophoresis Serum","description":"\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; max-width: 800px; margin: 0 auto; color: #111111;\"\u003e\n\u003c!-- ── STAGE 1 · SHOCK OPEN ── --\u003e\n\u003cdiv style=\"padding: 40px 0 24px;\"\u003e\n\u003ch1 style=\"font-size: 28px; font-weight: bold; letter-spacing: -0.5px; margin: 0 0 16px; color: #111111;\"\u003eVitamin C that actually reaches your skin — not just sits on top of it.\u003c\/h1\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.7; color: #333333;\"\u003eMost Vitamin C serums oxidise before they absorb, lose potency within weeks of opening, or sit at concentrations too low to do anything meaningful. You apply them faithfully — and wonder why the brightness, the evenness, the firmness you were promised never quite arrives. The problem is rarely your skin. It is the formula.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── STAGE 2 · PRODUCT INTRODUCTION ── --\u003e\n\u003cdiv style=\"border-top: 2px solid #CC0000; padding: 32px 0 24px;\"\u003e\n\u003ch2 style=\"font-size: 22px; font-weight: bold; margin: 0 0 8px; color: #111111;\"\u003eInderma Pure Vitamin C Serum 15%\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; font-style: italic; color: #cc0000; margin: 0 0 16px;\"\u003ePure Ascorbic Acid at 15% — the professional standard, exactly as it should be.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #333333;\"\u003eThis serum uses pure Ascorbic Acid — the most researched, most bioavailable form of Vitamin C — at a 15% concentration. That is the level used in professional salon and clinic settings for iontophoresis, electroporation, and post-treatment infusion protocols. It is not a stabilised derivative or an encapsulated alternative. It is the real thing, at the concentration that matters, in a formula designed for professional application and results.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #333333;\"\u003eOur licensed pharmacist and certified cosmetic formulation manager selected this serum for cosmogangnam.com because pure Ascorbic Acid at 15% — when properly formulated and correctly stored — represents the most direct route to the brightening, antioxidant, and collagen-stimulating effects that Vitamin C is capable of delivering. This is the formula that professional salons in Korea have been reordering for over a decade.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── STAGE 3 · FIRST EASY WIN ── --\u003e\n\u003cdiv style=\"display: flex; gap: 16px; padding: 32px 0; flex-wrap: wrap;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 220px; background: #f7f7f7; border-left: 4px solid #CC0000; padding: 24px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; color: #cc0000; margin: 0 0 8px;\"\u003eWithin 10 Minutes\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.6; color: #333333; margin: 0;\"\u003eSkin feels energised and refreshed immediately after application. The serum absorbs cleanly — particularly effective when used before a mask, under ultrasound, or with iontophoresis for professional-level penetration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 220px; background: #f7f7f7; border-left: 4px solid #111111; padding: 24px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; color: #111111; margin: 0 0 8px;\"\u003eNext Morning\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.6; color: #333333; margin: 0;\"\u003eSkin looks noticeably more luminous and even-toned. The complexion has a cleaner, more radiant quality — the kind of brightness that reads in natural light without the help of filters or highlighter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── STAGE 4 · HARD PROBLEM ATTACK ── --\u003e\n\u003cdiv style=\"background: #111111; color: #ffffff; padding: 32px; margin: 8px 0;\"\u003e\n\u003cp style=\"font-size: 17px; font-style: italic; color: #cccccc; margin: 0 0 20px;\"\u003e\"Pure Vitamin C oxidises so quickly. Is a 15% serum really stable enough to be effective?\"\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #e0e0e0; margin: 0 0 16px;\"\u003eThis is the right question — and the answer is in how this serum is formulated and stored. Pure Ascorbic Acid is inherently unstable at high concentrations when exposed to light, heat, and air. This formula addresses that directly: it must be refrigerated after opening, kept away from direct sunlight and heat, and the cap sealed immediately after use. These are not inconveniences — they are the conditions that maintain the 15% concentration at full potency throughout the product's life. Professional salons who have used this serum for seven to eight years continue to reorder it specifically because the results, when storage conditions are followed, are consistent with what pure Ascorbic Acid at this concentration should deliver.\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #e0e0e0; margin: 0 0 24px;\"\u003eOur pharmacist-curator assessed this formula's supporting ingredient profile — Hyaluronic Acid for hydration during application, Betaine for osmotic balance, and Panthenol for post-application barrier support — as a well-considered delivery environment for high-concentration Ascorbic Acid.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px;\"\u003e\n\u003cspan style=\"background: #CC0000; color: #fff; padding: 6px 14px; font-size: 12px; font-weight: bold; border-radius: 2px;\"\u003eAscorbic Acid 15%\u003c\/span\u003e \u003cspan style=\"background: #CC0000; color: #fff; padding: 6px 14px; font-size: 12px; font-weight: bold; border-radius: 2px;\"\u003eHyaluronic Acid\u003c\/span\u003e \u003cspan style=\"background: #CC0000; color: #fff; padding: 6px 14px; font-size: 12px; font-weight: bold; border-radius: 2px;\"\u003ePanthenol\u003c\/span\u003e \u003cspan style=\"background: #CC0000; color: #fff; padding: 6px 14px; font-size: 12px; font-weight: bold; border-radius: 2px;\"\u003eAllantoin\u003c\/span\u003e \u003cspan style=\"background: #CC0000; color: #fff; padding: 6px 14px; font-size: 12px; font-weight: bold; border-radius: 2px;\"\u003eBetaine\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── STAGE 5 · TRANSFORMATION TIMELINE ── --\u003e\n\u003cdiv style=\"padding: 40px 0 24px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 24px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eWhat to Expect\u003c\/h3\u003e\n\u003cdiv style=\"border-left: 3px solid #CC0000; padding-left: 24px;\"\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #cc0000; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 4px;\"\u003eDays 1–3\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.6; color: #333333; margin: 0;\"\u003eSkin feels brighter and more energised after each application. The serum absorbs cleanly, particularly effective when used before a mask or with professional devices. Store in the refrigerator — the cool application temperature also adds a refreshing, tightening sensation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #cc0000; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 4px;\"\u003eWeek 1\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.6; color: #333333; margin: 0;\"\u003eSkin tone begins to look more even and luminous. Dark spots and post-blemish marks appear slightly less prominent. The complexion has more of a naturally bright quality at baseline — without the use of makeup or colour correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #cc0000; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 4px;\"\u003eWeek 2\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.6; color: #333333; margin: 0;\"\u003eUneven pigmentation and dullness continue to improve. Skin texture feels smoother, and fine lines appear less visible. The antioxidant effect of Ascorbic Acid at 15% begins to show in a more consistently healthy-looking complexion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 8px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; color: #cc0000; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 4px;\"\u003eWeek 4\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.6; color: #333333; margin: 0;\"\u003eWith consistent use and correct refrigerated storage, skin tone is visibly more even, radiance is noticeably improved, and the overall complexion looks healthier and more youthful. Professional salon customers describe this as a product their clients specifically ask about after treatments. \u003cem\u003eIndividual results may vary.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── STAGE 6 · INGREDIENT CARDS + SKIN TYPE GRID ── --\u003e\n\u003cdiv style=\"padding: 32px 0 24px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 20px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eKey Ingredients\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 32px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; border: 1px solid #e0e0e0; padding: 20px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0 0 6px; color: #111111;\"\u003eAscorbic Acid (Pure Vitamin C) \u003cspan style=\"background: #CC0000; color: #fff; font-size: 11px; padding: 2px 8px; margin-left: 6px;\"\u003e15%\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.6; color: #555555; margin: 0;\"\u003eThe most bioavailable and extensively researched form of Vitamin C. At 15%, it delivers meaningful antioxidant protection, inhibits melanin synthesis for brightening, and stimulates collagen production for structural skin support. Requires refrigerated storage to maintain potency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; border: 1px solid #e0e0e0; padding: 20px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0 0 6px; color: #111111;\"\u003eHyaluronic Acid (Sodium Hyaluronate) \u003cspan style=\"background: #CC0000; color: #fff; font-size: 11px; padding: 2px 8px; margin-left: 6px;\"\u003eHydration\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.6; color: #555555; margin: 0;\"\u003eProvides the hydration vehicle that supports comfortable, even application of high-concentration Ascorbic Acid. Helps minimise potential dryness or sensitivity associated with active Vitamin C use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; border: 1px solid #e0e0e0; padding: 20px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0 0 6px; color: #111111;\"\u003ePanthenol (Provitamin B5) \u003cspan style=\"background: #CC0000; color: #fff; font-size: 11px; padding: 2px 8px; margin-left: 6px;\"\u003eBarrier\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.6; color: #555555; margin: 0;\"\u003eSupports skin barrier repair and maintains moisture after application. Particularly important in high-concentration Vitamin C formulas where barrier support mitigates potential irritation during the skin's adjustment period.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 200px; border: 1px solid #e0e0e0; padding: 20px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0 0 6px; color: #111111;\"\u003eAllantoin \u003cspan style=\"background: #CC0000; color: #fff; font-size: 11px; padding: 2px 8px; margin-left: 6px;\"\u003eSoothing\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.6; color: #555555; margin: 0;\"\u003eA skin-conditioning agent that promotes cell regeneration and soothes sensitivity. Buffers the potential tingling associated with pure Ascorbic Acid at professional concentrations — making the formula more tolerable for regular use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Skin Type Grid --\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 16px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eSkin Type Guide\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;\"\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 16px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 14px; margin: 0 0 4px; color: #111111;\"\u003eAll Skin Types\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555555; margin: 0;\"\u003eFormulated for all skin types. Begin with every-other-day use to assess tolerance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 16px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 14px; margin: 0 0 4px; color: #111111;\"\u003eDull \/ Uneven\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555555; margin: 0;\"\u003eCore use case — Ascorbic Acid 15% targets melanin synthesis and restores radiance directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 16px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 14px; margin: 0 0 4px; color: #111111;\"\u003eMature\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555555; margin: 0;\"\u003eCollagen stimulation and antioxidant defence address the primary visible signs of skin ageing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 16px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 14px; margin: 0 0 4px; color: #111111;\"\u003ePost-Blemish\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555555; margin: 0;\"\u003eAscorbic Acid supports fading of post-inflammatory hyperpigmentation over consistent use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 16px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 14px; margin: 0 0 4px; color: #111111;\"\u003eProfessional Use\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555555; margin: 0;\"\u003eDesigned for iontophoresis, electroporation, and pre-mask application in salon settings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 16px; text-align: center;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 14px; margin: 0 0 4px; color: #111111;\"\u003eSensitive*\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #555555; margin: 0;\"\u003eStart with alternate-day use. Patch test recommended. 15% is a professional concentration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 12px; color: #888888; margin: 12px 0 0;\"\u003e* Pure Ascorbic Acid at 15% is a professional concentration. Begin with every-other-day use and build frequency gradually. Perform a patch test before full application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── STAGE 7 · FINAL FLEX + CLOSE ── --\u003e\n\u003cdiv style=\"background: #111111; color: #ffffff; padding: 32px; margin: 8px 0 32px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; color: #cc0000; margin: 0 0 12px;\"\u003eThe Serum Korean Salons Have Reordered for Over a Decade\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #e0e0e0; margin: 0 0 20px;\"\u003eThis is not a serum that launched with influencer campaigns or limited-edition packaging. It is the formula that professional salons in Korea have quietly reordered year after year — because it works consistently, session after session, client after client. One verified customer has used it continuously for seven to eight years, comparing it to imported alternatives costing significantly more, and continues to choose this formula for its value-to-performance ratio. The 60ml size delivers a professional application volume. Refrigerated storage is required — and it is worth it.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; font-weight: bold; color: #ffffff; margin: 0;\"\u003ePure Ascorbic Acid 15%. Pharmacist-selected. Salon-proven. Refrigerate and use with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── REFRIGERATION WARNING BOX ── --\u003e\n\u003cdiv style=\"background: #fff8e1; border: 2px solid #f0a500; padding: 20px; margin-bottom: 32px; text-align: center;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #b07800; margin: 0 0 8px;\"\u003e⚠️ REFRIGERATION REQUIRED AFTER OPENING\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.6; color: #7a5500; margin: 0;\"\u003ePure Ascorbic Acid at 15% is sensitive to heat, light, and air. Store in the refrigerator after opening. Keep away from direct sunlight. Close the cap immediately after each use. Correct storage maintains full potency throughout the product's life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── PHARMACIST CREDENTIAL BLOCK ── --\u003e\n\u003cdiv style=\"border: 2px solid #111111; padding: 28px; margin-bottom: 32px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; color: #cc0000; margin: 0 0 8px;\"\u003eWhy Our Pharmacist Chose This\u003c\/p\u003e\n\u003cp itemtype=\"https:\/\/schema.org\/Person\" itemscope=\"\" style=\"font-size: 14px; font-weight: bold; color: #111111; margin: 0 0 12px;\"\u003e\u003cspan itemprop=\"jobTitle\"\u003eLicensed Korean Pharmacist \u0026amp; Certified Cosmetic Formulation Manager\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; line-height: 1.7; color: #333333; margin: 0 0 12px;\"\u003eWhen evaluating Vitamin C serums, the first question I ask is: which form of Vitamin C, and at what concentration? Pure Ascorbic Acid remains the gold standard — it is the form with the most extensive research behind its brightening, antioxidant, and collagen-stimulating mechanisms. A 15% concentration sits at the upper end of what is considered effective for cosmetic application without crossing into pharmaceutical territory. The supporting formula here — Hyaluronic Acid, Panthenol, Allantoin, Betaine — is well-constructed for tolerability. The refrigeration requirement is non-negotiable for this type of formula, and the fact that professional salons have reordered this product consistently for over a decade is, in my assessment, the strongest validation a cosmetic formula can have.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; color: #555555; margin: 0;\"\u003eEvery product on cosmogangnam.com passes our pharmacist's ingredient review before listing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── CUSTOMER VOICE BLOCK ── --\u003e\n\u003cdiv style=\"padding: 0 0 32px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 20px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eWhat Customers Notice\u003c\/h3\u003e\n\u003cdiv style=\"border-left: 3px solid #CC0000; padding-left: 20px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-size: 15px; font-style: italic; line-height: 1.7; color: #333333; margin: 0 0 6px;\"\u003e\"The best Vitamin C serum I've used. Works beautifully before a mask and with ultrasound. My clients' skin looks luminous after every session.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #888888; margin: 0;\"\u003eVerified Customer — Professional Salon Use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #CC0000; padding-left: 20px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-size: 15px; font-style: italic; line-height: 1.7; color: #333333; margin: 0 0 6px;\"\u003e\"Our salon's best-selling product. I apply it generously before electroporation and the results are consistently glowing. Clients ask for it by name.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #888888; margin: 0;\"\u003eVerified Customer — Salon Electroporation Use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #CC0000; padding-left: 20px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-size: 15px; font-style: italic; line-height: 1.7; color: #333333; margin: 0 0 6px;\"\u003e\"I've been using this for seven or eight years — tried powder versions, more expensive imports, cheaper alternatives. When you factor in the price, nothing performs as consistently as this one. The imported versions are slightly smoother, but the difference doesn't justify the price gap.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #888888; margin: 0;\"\u003eVerified Customer — 7+ Years Continuous Use\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left: 3px solid #CC0000; padding-left: 20px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"font-size: 15px; font-style: italic; line-height: 1.7; color: #333333; margin: 0 0 6px;\"\u003e\"I switched from the powder format and I won't go back. No mixing, easier quantity control, and you can reapply mid-treatment without any mess. Skin looks brighter and more even.\"\u003c\/p\u003e\n\u003cp style=\"font-size: 12px; color: #888888; margin: 0;\"\u003eVerified Customer — Switched from Powder Format\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 13px; color: #888888; font-style: italic; margin: 8px 0 0;\"\u003eIndividual results may vary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── FAQ SECTION ── --\u003e\n\u003cdiv style=\"padding: 0 0 32px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 20px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding: 16px 0;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #111111; margin: 0 0 8px;\"\u003eWhat does the Inderma Pure Vitamin C Serum 15% do?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.7; color: #444444; margin: 0;\"\u003eThis K-beauty serum delivers pure Ascorbic Acid at 15% — the most bioavailable form of Vitamin C — for brightening, antioxidant protection, and collagen stimulation. It targets dullness, uneven skin tone, post-blemish marks, and visible signs of ageing. Particularly effective when used with professional devices including iontophoresis, electroporation, and ultrasound.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding: 16px 0;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #111111; margin: 0 0 8px;\"\u003eWho should use this serum?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.7; color: #444444; margin: 0;\"\u003eThis serum is formulated for all skin types, with particular benefit for dull, uneven, or mature skin. It is also widely used in professional salon settings for treatment protocols. Those with sensitive skin should begin with alternate-day use and build frequency gradually. Always perform a patch test before full application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding: 16px 0;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #111111; margin: 0 0 8px;\"\u003eHow do I use this serum in my skincare routine?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.7; color: #444444; margin: 0;\"\u003eAfter cleansing, apply an appropriate amount to the face and neck. Spread gently and pat until absorbed. Use morning and\/or evening. For professional use: apply before mask, iontophoresis, electroporation, or ultrasound treatment. Always follow with moisturiser and SPF in the morning. Store in the refrigerator after opening and close the cap immediately after each use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding: 16px 0;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #111111; margin: 0 0 8px;\"\u003eWhy does this serum need to be refrigerated?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.7; color: #444444; margin: 0;\"\u003ePure Ascorbic Acid at 15% is sensitive to heat, light, and air exposure. Refrigeration slows oxidation and maintains the concentration at full potency throughout the product's life. This is standard practice for professional-grade pure Vitamin C formulas. The refrigeration requirement is a sign of formula authenticity — not a limitation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-bottom: 1px solid #e0e0e0; padding: 16px 0;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #111111; margin: 0 0 8px;\"\u003eWhat makes this different from other K-beauty Vitamin C serums?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.7; color: #444444; margin: 0;\"\u003eMany Vitamin C products use stabilised derivatives — Ascorbyl Glucoside, Sodium Ascorbyl Phosphate, or encapsulated forms — that are gentler but less directly bioavailable than pure Ascorbic Acid. This serum uses pure Ascorbic Acid at 15% — the professional standard. It has been reordered by Korean salons for over a decade, which our licensed pharmacist curator assessed as one of the strongest available indicators of real-world, consistent performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 16px 0;\"\u003e\n\u003cp style=\"font-size: 15px; font-weight: bold; color: #111111; margin: 0 0 8px;\"\u003eHow long until I see results?\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.7; color: #444444; margin: 0;\"\u003eBrightness and radiance improvements are typically visible within the first week of consistent use. Uneven tone and post-blemish marks show progressive improvement from week two onwards. Collagen-related firmness changes develop with longer-term consistent use. Individual results may vary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── HOW TO USE ── --\u003e\n\u003cdiv style=\"background: #f7f7f7; padding: 28px; margin-bottom: 32px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 16px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eHow to Use\u003c\/h3\u003e\n\u003col style=\"font-size: 15px; line-height: 1.8; color: #333333; margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003eCleanse skin thoroughly.\u003c\/li\u003e\n\u003cli\u003eApply an appropriate amount to the back of the hand.\u003c\/li\u003e\n\u003cli\u003eSpread gently across face and neck from centre outward.\u003c\/li\u003e\n\u003cli\u003ePat gently until fully absorbed.\u003c\/li\u003e\n\u003cli\u003eFollow with moisturiser. Apply SPF in the morning.\u003c\/li\u003e\n\u003cli\u003eUse morning and\/or evening as part of your skincare routine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor professional use:\u003c\/strong\u003e Apply before mask, iontophoresis, electroporation, or ultrasound treatment for enhanced penetration.\u003c\/li\u003e\n\u003cli style=\"margin-top: 8px; color: #b07800; font-weight: bold;\"\u003e⚠️ Refrigerate after opening. Keep away from direct sunlight and heat. Close cap immediately after use.\u003c\/li\u003e\n\u003cli style=\"margin-top: 4px; color: #cc0000; font-weight: 600;\"\u003ePatch test: Apply a small amount to the inner arm and wait 24 hours before first full use. Discontinue use immediately if irritation, redness, or discomfort occurs.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c!-- ── PRODUCT DETAILS TABLE ── --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 16px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eProduct Details\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; width: 40%; background: #f7f7f7;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eInderma\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eVolume\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003e60ml \/ 2.03 fl oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eTexture\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eSerum (lightweight, fast-absorbing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eAbsorption Speed\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eFast\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eScent\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eMinimal \/ characteristic Vitamin C scent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eSkin Type\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eAll skin types · Patch test recommended for sensitive skin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eKey Active\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eAscorbic Acid (Pure Vitamin C) 15%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eStorage\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #b07800; font-weight: bold;\"\u003e⚠️ Refrigerate after opening. Avoid heat and direct sunlight.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eProfessional Use\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eIontophoresis · Electroporation · Ultrasound · Pre-mask application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"border-bottom: 1px solid #e0e0e0;\"\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eMade in\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eSouth Korea\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px 16px; font-weight: bold; color: #111111; background: #f7f7f7;\"\u003eRegulatory\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 16px; color: #333333;\"\u003eMFDS (Korea Ministry of Food \u0026amp; Drug Safety) Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- ── FULL INGREDIENTS ── --\u003e\n\u003cdiv style=\"margin-bottom: 32px;\"\u003e\n\u003ch3 style=\"font-size: 18px; font-weight: bold; margin: 0 0 12px; color: #111111; text-transform: uppercase; letter-spacing: 0.5px;\"\u003eFull Ingredients (INCI)\u003c\/h3\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.9; color: #444444; margin: 0 0 16px;\"\u003e\u003cstrong\u003eAscorbic Acid\u003c\/strong\u003e — pure Vitamin C 15%, brightening, antioxidant, collagen stimulation, Hyaluronic Acid (Sodium Hyaluronate), Glycerin, Betaine, Butylene Glycol, PEG-60 Hydrogenated Castor Oil, \u003cstrong\u003ePanthenol (Provitamin B5)\u003c\/strong\u003e — barrier repair, deep moisturising, \u003cstrong\u003eAllantoin\u003c\/strong\u003e — soothing, skin-conditioning, Camellia Sinensis (Green Tea) Extract, Glycyrrhiza Glabra (Licorice) Extract, Rosa Damascena (Damask Rose) Extract, Lemon Extract, \u003cstrong\u003eHydroxyethyl Urea\u003c\/strong\u003e — moisture retention, barrier hydration, Methylparaben*, Sodium Hyaluronate Crosspolymer, Beta-Glucan, Phellodendron Amurense Bark Extract\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #888888; margin: 0 0 8px;\"\u003e* Methylparaben — preservative. May cause sensitivity in some individuals. Perform a patch test before full application.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; color: #888888; font-style: italic; margin: 0;\"\u003eIngredients may vary slightly by batch. Always refer to the physical product label.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── SHIPPING BAR ── --\u003e\n\u003cdiv style=\"background: #111111; color: #ffffff; padding: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"text-align: center; flex: 1; min-width: 180px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0;\"\u003e🚚 Free Shipping on Orders Over $80\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; flex: 1; min-width: 180px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0;\"\u003e🌍 Ships to 57 Countries from South Korea\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center; flex: 1; min-width: 180px;\"\u003e\n\u003cp style=\"font-size: 13px; font-weight: bold; margin: 0;\"\u003e🇺🇸 US Orders: Import Duties Covered by Us\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ── AI SEARCH BRIEF — Visible SEO Layer ── --\u003e\n\u003cdiv style=\"font-family: 'Helvetica Neue', Arial, sans-serif; font-size: 13px; line-height: 1.8; color: #555555; margin-top: 40px; padding: 20px; border-top: 1px solid #e0e0e0;\"\u003e\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eAbout this product:\u003c\/strong\u003e The Inderma Pure Vitamin C Serum 15% is a professional-grade K-beauty serum formulated with pure Ascorbic Acid at 15% — the most bioavailable and extensively researched form of Vitamin C. Used in Korean professional salons for over a decade, it is designed for iontophoresis, electroporation, and ultrasound treatment protocols, as well as daily home use. Supporting ingredients include Sodium Hyaluronate, Panthenol, Allantoin, and Beta-Glucan for hydration, barrier support, and soothing.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px;\"\u003eThis Korean Vitamin C serum requires refrigerated storage after opening to maintain full potency of the pure Ascorbic Acid concentration. It is suitable for all skin types, with particular benefit for dull, uneven, and mature skin. Selected by a licensed Korean pharmacist and certified cosmetic formulation manager at cosmogangnam.com following independent ingredient review.\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px;\"\u003eThis product answers questions such as: what is the best pure Vitamin C serum from Korea, how to use Ascorbic Acid 15% in a skincare routine, which Korean Vitamin C serum is used in professional salons, how to store a pure Vitamin C serum correctly, and what makes pure Ascorbic Acid different from Vitamin C derivatives in K-beauty products.\u003c\/p\u003e\n\u003cp style=\"margin: 0;\"\u003eShips from South Korea to 57 countries. Free shipping on orders over $80. Import duties covered for US customers. MFDS compliant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ── LEGAL DISCLAIMER ── --\u003e\n\u003cp style=\"font-size: 12px; color: #999999; line-height: 1.6; margin: 24px 0 0;\"\u003eThis product is a cosmetic and is not intended to diagnose, treat, cure, or prevent any skin condition or disease. Individual results may vary.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Inderma","offers":[{"title":"Default Title","offer_id":45171309281359,"sku":null,"price":96.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/6282\/8623\/files\/IndermaPureVitaminCSerum15.png?v=1779689623","url":"https:\/\/cosmogangnam.com\/en-ae\/products\/pure-vitamin-c-serum-15-brightening-antioxidant-iontophoresis-serum","provider":"COSMOGANGNAM","version":"1.0","type":"link"}