--- product_id: 538463295 title: "The Vitamin C 13 serum 20 ML" brand: "cosrx" price: "540 kr" currency: NOK in_stock: true category: "Cosrx" url: https://www.desertcart.no/products/538463295-the-vitamin-c-13-serum-20-ml store_origin: NO region: Norway --- # Double-layer oil structure for freshness 13% pure Vitamin C concentration Hypoallergenic & stabilized formula The Vitamin C 13 serum 20 ML **Brand:** cosrx **Price:** 540 kr **Availability:** ✅ In Stock ## Summary > ✨ Unlock your skin’s glow with science-backed Vitamin C brilliance! ## Quick Answers - **What is this?** The Vitamin C 13 serum 20 ML by cosrx - **How much does it cost?** 540 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/538463295-the-vitamin-c-13-serum-20-ml) ## Best For - cosrx enthusiasts ## Why This Product - Trusted cosrx brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Radiance Booster:** Fades acne scars and brightens dull skin for a luminous glow. - • **Freshness Locked In:** Innovative double-layer oil structure delays oxidation, preserving serum potency. - • **Power-Packed Purity:** 13% pure Vitamin C concentration delivers potent antioxidant benefits. - • **Even Tone Revolution:** Prevents melanin synthesis to visibly reduce hyperpigmentation and uneven skin tone. - • **Gentle Yet Effective:** Hypoallergenic formula designed to minimize irritation without compromising results. ## Overview Cosrx The Vitamin C 13 Serum is a 20ml powerhouse featuring a 13% pure Vitamin C concentration in a hypoallergenic, stabilized formula. Its unique double-layer oil structure preserves freshness and delays oxidation, effectively fading acne scars, brightening dull skin, and preventing hyperpigmentation for a radiant, even complexion. ## Description Cosrx The Vitamin C 13 serum 20 ML ## Features - 13% concentrated pure vitamin C Serum Highly concentrated serum that fades acne scars, brightens and restores dull, uneven skin tone - Concentrated vitamin C serum to fade acne scars & boost radiance Packed with vitamin C to effectively prevent melanin synthesis fading acne scars and hyperpigmentation whilst brightening the complexion - Hypoallergenic, stabilised formula Stablised formula that breaks the preconceived notion that pure vitamin C is an irritating and double-layer structure with oil layer on top to maintain freshness and delay oxidation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BS8M8Q5L | | ASIN | B0BS8M8Q5L | | Active Ingredients | ascorbic acid,vitamin c,vitamin e | | Best Sellers Rank | #5,902 in Beauty ( See Top 100 in Beauty ) #172 in Facial Day Care | | Brand Name | COSRX | | Customer Reviews | 4.3 4.3 out of 5 stars (2,200) | | Customer reviews | 4.3 4.3 out of 5 stars (2,200) | | Date First Available | 23 June 2023 | | Global Trade Identification Number | 08809598455238 | | Item Form | Oil | | Item Volume | 20 Milliliters | | Item Weight | 20 Grams | | Item model number | SC40TR06 | | Manufacturer | COSRX | | Manufacturer | COSRX | | Manufacturer Part Number | SC40TR06 | | Material Features | Antioxidant | | Material Type Free | soap free | | Model Number | SC40TR06 | | Number of Items | 1 | | Product Benefits | Brightening | | Product Dimensions | 4.2 x 6.3 x 10.2 cm; 20 g | | Recommended Uses For Product | Brightening,Hydrating,Provides Vitamins,Wrinkles | | Scent Name | Unscented | | Skin Tone | All | | Skin Type | Dry, Sensitive | | Special Ingredients | hyaluronic_acid, vitamin_c, vitamin_e | | Target Use Body Part | Skin | | Unit Count | 20 Milliliters | ## Product Details - **Product benefits:** Brightening - **Scent:** Unscented - **Skin type:** Dry, Sensitive - **Special ingredients:** hyaluronic_acid, vitamin_c, vitamin_e - **Use for:** Skin ## Images ![The Vitamin C 13 serum 20 ML - Image 1](https://m.media-amazon.com/images/I/71c4jNujODL.jpg) ## Questions & Answers **Q: How do I use this product?** A: This Serum consists of highly concentrated Pure Vitamin C (Ascorbic Acid)- a patch test on the body is recommended before using on the face. Store in the fridge to prevent oxidation. **Q: Why does the serum smell bad?** A: Pure Vitamin C (Ascorbic Acid) naturally has a coppery scent. In order to keep our product as natural as possible, The Vitamin C 13 Serum is formulated without artificial fragrances. **Q: Can this be used on sensitive skin?** A: Based on a Primary Dermal Irritation Study (on 30 subjects for 24 hours) the “The Vitamin C 13 Serum” is found to be a non-irritant product that causes no irritation for sensitive skin. *Perform a patch test on the body before using on the face. **Q: How do I know if this product is authentic?​** A: To ensure the authenticity of the product, please make sure you are purchasing the product from COSRX Inc. The authenticity of the product cannot be promised when purchased from sellers other than COSRX Inc. ## Frequently Bought Together - COSRX Pure Vitamin C 13% Serum with Vitamin E & Hyaluronic Acid, Hydrating Facial Serum for Fine Lines, Uneven Skin Tone & Dull Skin, 0.67fl.oz/20ml, Korean Skin Care - COSRX 15% Niacinamide Face Serum, 0.67 fl oz, Pore Minimizer Serum for Face, Even Skin Tone, Korean Skin Care --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.no/products/538463295-the-vitamin-c-13-serum-20-ml](https://www.desertcart.no/products/538463295-the-vitamin-c-13-serum-20-ml) --- *Product available on Desertcart Norway* *Store origin: NO* *Last updated: 2026-11-02*