--- product_id: 538463295 title: "Cosrx The Vitamin C 13 serum 20 ML" brand: "cosrx" price: "€ 40.74" currency: EUR in_stock: true reviews_count: 11 url: https://www.desertcart.be/products/538463295-cosrx-the-vitamin-c-13-serum-20-ml store_origin: BE region: Belgium --- # Double-layer oil structure for freshness 13% pure Vitamin C concentration Hypoallergenic & stabilized formula Cosrx The Vitamin C 13 serum 20 ML **Brand:** cosrx **Price:** € 40.74 **Availability:** ✅ In Stock ## Summary > ✨ Glow Up Your Skin Game with Science-Backed Vitamin C! 🍊 ## Quick Answers - **What is this?** Cosrx The Vitamin C 13 serum 20 ML by cosrx - **How much does it cost?** € 40.74 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/538463295-cosrx-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 with potent 13% Vitamin C. - • **Compact Powerhouse:** 20ml size perfect for daily use, fitting seamlessly into your skincare routine. - • **Freshness Locked In:** Innovative double-layer oil barrier delays oxidation, preserving serum potency. - • **Gentle Yet Powerful:** Hypoallergenic formula designed to minimize irritation without compromising efficacy. - • **Even Tone, Every Day:** Effectively prevents melanin synthesis to reduce hyperpigmentation and uneven skin tone. ## Overview Cosrx The Vitamin C 13 Serum is a 20ml powerhouse featuring a highly concentrated 13% pure vitamin C formula designed to fade acne scars, brighten dull and uneven skin tones, and prevent hyperpigmentation. Its hypoallergenic, stabilized double-layer oil structure ensures maximum freshness and minimal irritation, making it a must-have for radiant, healthy skin. ## 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 | | Best Sellers Rank | #641 in Facial Day Care | | Date First Available | 23 June 2023 | | Item Model Number | SC40TR06 | | Manufacturer | COSRX | | Product Dimensions | 4.2 x 6.3 x 10.2 cm; 20 g | ## Product Details - **Product benefits:** Brightening - **Scent:** Unscented - **Skin type:** Dry, Sensitive - **Special ingredients:** hyaluronic_acid, vitamin_c, vitamin_e - **Use for:** Skin ## Images ![Cosrx 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ I love it *by on Reviewed in the United Arab Emirates 4 April 2026* Perfect ### ⭐⭐⭐⭐⭐ I love this product…leaves your skin feeling plump *by on Reviewed in the United Arab Emirates 2 May 2025* Good purchase ### ⭐⭐⭐ Smells like chemical and it comes in yellow colour is it oxidised?? *by on Reviewed in the United Arab Emirates 13 February 2025* Okayish ## 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.be/products/538463295-cosrx-the-vitamin-c-13-serum-20-ml](https://www.desertcart.be/products/538463295-cosrx-the-vitamin-c-13-serum-20-ml) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-09-06*