--- product_id: 74163307 title: "Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml" brand: "medik8" price: "$118.99" currency: USD in_stock: true reviews_count: 13 category: "Medik8" url: https://www.desertcart.us/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-30ml store_origin: US region: United States of America --- # Jojoba seed oil-based lightweight nourishment 7% Stabilised Vitamin C for potent anti-ageing Made in UK, ISO-certified Innovation Centre quality Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml **Brand:** medik8 **Price:** $118.99 **Availability:** ✅ In Stock ## Summary > ✨ Glow Like You Mean It — Radiance Meets Science ## Quick Answers - **What is this?** Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml by medik8 - **How much does it cost?** $118.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-30ml) ## Best For - medik8 enthusiasts ## Why This Product - Trusted medik8 brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Brighten & Even Out:** Visibly evens skin tone with low-irritation, stabilized Vitamin C for sensitive skin. - • **Morning Power Ritual:** Absorbs quickly—perfect base for sunscreen to maximize daily age-defying benefits. - • **Youthful Glow, Guaranteed:** Clinically proven 7% tetrahexyldecyl ascorbate smooths fine lines & boosts radiance. - • **Sustainably Crafted Excellence:** B Corp certified, UK-made with eco-conscious standards you can trust. - • **Lightweight, Non-Greasy Formula:** Jojoba seed oil delivers deep nourishment without heaviness or shine. ## Overview Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum is a UK-made, B Corp certified skincare essential featuring a potent 7% stabilized Vitamin C (tetrahexyldecyl ascorbate) formula. Designed to brighten, even skin tone, and smooth fine lines, it combines lightweight jojoba seed oil nourishment with clinical-grade efficacy. Ideal for sensitive skin, this serum absorbs quickly and pairs perfectly with sunscreen for a powerful morning anti-ageing routine. ## Description Results Without Compromise B Corp certified, Medik8, is a British dermatological skincare brand, globally renowned for age-defying heroes that deliver results without compromise. Clinically proven, our simple CSA PhilosophyⓇ of vitamin C plus sunscreen by day, and vitamin A (retinoids) by night addresses 90% of anti-ageing skincare needs for more youthful-looking skin. Results Without Compromise B Corp certified, Medik8, is a British dermatological skincare brand, globally renowned for age-defying heroes that deliver results without compromise. Clinically proven, our simple CSA PhilosophyⓇ of vitamin C plus sunscreen by day, and vitamin A (retinoids) by night addresses 90% of anti-ageing skincare needs for more youthful-looking skin. Shop Medik8 Visit the store Shop Medik8 Visit the store Clinically Proven Results We truly pride ourselves on the visible skincare results our customers achieve. It’s down to our choice of the best professional grade active ingredients expertly crafted into beautiful to use products - all without needing a prescription. Clinically proven via independent studies, robustly researched and rigorously tested. Clinically Proven Results We truly pride ourselves on the visible skincare results our customers achieve. It’s down to our choice of the best professional grade active ingredients expertly crafted into beautiful to use products - all without needing a prescription. Clinically proven via independent studies, robustly researched and rigorously tested. Dermatologist Recommended ''Medik8 combines medical-grade efficacy with cutting-edge skincare innovation.’' Dr. Ewoma Ukeleghe, Medical & Cosmetics Doctor Dermatologist Recommended ''Medik8 combines medical-grade efficacy with cutting-edge skincare innovation.’' Dr. Ewoma Ukeleghe, Medical & Cosmetics Doctor Meticulously Made by Us in the UK We craft and manufacture virtually everything ourselves from our own ISO-certified Innovation Centre, just outside London, UK. Harnessing the highest quality ingredients alongside patented technologies, means you can be assured of consistent UK standards of excellence in every product. Meticulously Made by Us in the UK We craft and manufacture virtually everything ourselves from our own ISO-certified Innovation Centre, just outside London, UK. Harnessing the highest quality ingredients alongside patented technologies, means you can be assured of consistent UK standards of excellence in every product. Patented Technologies From the Experts in Vitamin A Patented Technologies From the Experts in Vitamin A Our Founders’ Story Founded in 2009 by UK scientists and brothers, Elliot & Daniel Isaacs, Medik8 is renowned for skincare innovations. Our Founders’ Story Founded in 2009 by UK scientists and brothers, Elliot & Daniel Isaacs, Medik8 is renowned for skincare innovations. B Corp Certified B Corp Certified Medik8 is proud to be 1 of only 66 beauty manufacturers worldwide with this esteemed social and environmental impact certification. When you buy Medik8, you can be assured you’re not compromising on sustainability values like helping to reduce carbon, plastic waste or prioritising renewable energy. B Corp Certified B Corp Certified Medik8 is proud to be 1 of only 66 beauty manufacturers worldwide with this esteemed social and environmental impact certification. When you buy Medik8, you can be assured you’re not compromising on sustainability values like helping to reduce carbon, plastic waste or prioritising renewable energy. Review: Most try - I really like this, gives a nice radiance Review: Really helps my skin to hydrate - Absorbs well into skin Its part of my morning skin regime and I have seen results ## Features - INCREASED SKIN YOUTHFULNESS - 7% Stabilised Vitamin C (tetrahexyldecyl ascorbate), formulated to simultaneously smooth the look of fine lines and wrinkles while visibly boosting skin glow and radiance. - BRIGHTER, MORE EVEN COMPLEXION - Visibly brightens the skin tone, for a more even and healthy-looking skin appearance. Contains tetrahexyldecyl ascorbate - an effective, stabilised, and low-irritation form of vitamin C - LIGHTWEIGHT NOURISHMENT - This jojaba seed oil-based formula delivers effective yet non-greasy nourishment for visibly softer and comforted skin. - HOW TO USE - Step 1: After cleansing in the morning, massage 4 drops across the face, neck and décolletage. Step 2: Leave to absorb before applying sunscreen. - COMPLETE YOUR REGIME - For maximum age-defying results, we especially recommend using this product as part of our pioneering CSA Philosophy; vitamin C plus sunscreen by day, vitamin A by night. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GFS6WXH | | Active Ingredients | 14% Stabilised Vitamin C, Vitamin E | | Benefits | Brightens Skin Tone & Minimises Signs of Ageing | | Best Sellers Rank | 5,400 in Beauty ( See Top 100 in Beauty ) 131 in Face Serums | | Brand | Medik8 | | Brand Name | Medik8 | | Customer Reviews | 4.6 out of 5 stars 550 Reviews | | Item Form | Drop | | Item Type Name | C-Tetra | | Item Volume | 30 Millilitres | | Item Weight | 0.09 Kilograms | | Manufacturer | Medik8 | | Manufacturer Part Number | P06227 | | Material Features | Antioxidant | | Material Type Free | Alcohol Free, Fragrance Free, Paraben Free, Vegan | | Model Number | P06227 | | Number of Items | 1 | | Package Size Name | 30ml | | Product benefits | Brightens Skin Tone & Minimises Signs of Ageing | | Recommended Uses For Product | Wrinkles | | Scent | vitamin C serum | | Scent Name | vitamin C serum | | Skin Tone | Uneven | | Skin Type | Sensitive | | Skin type | Sensitive | | Special Ingredients | 7% Stabilised Vitamin C, Vitamin E | | Special ingredients | 7% Stabilised Vitamin C, Vitamin E | | Target Use Body Part | Face | | UPC | 818625024338 818625020989 | | Unit Count | 30.0 millilitre | | Use for | Face | ## Product Details - **Active ingredients:** 14% Stabilised Vitamin C, Vitamin E - **Brand:** Medik8 - **Item form:** Drop - **Item weight:** 0.09 Kilograms - **Material feature:** Antioxidant - **Product benefits:** Brightens Skin Tone & Minimises Signs of Ageing - **Scent:** vitamin C serum - **Skin type:** Sensitive - **Special ingredients:** 7% Stabilised Vitamin C, Vitamin E - **Use for:** Face ## Images ![Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml - Image 1](https://m.media-amazon.com/images/I/619Ttc7Pd6L.jpg) ![Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml - Image 2](https://m.media-amazon.com/images/I/81gBsne-yfL.jpg) ![Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml - Image 3](https://m.media-amazon.com/images/I/81B1prG4h6L.jpg) ![Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml - Image 4](https://m.media-amazon.com/images/I/713YLDnutkL.jpg) ![Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum - 30ml - Image 5](https://m.media-amazon.com/images/I/71YvBXFBauL.jpg) ## Questions & Answers **Q: Is this genuine Medik8 products verified by their stockist?** A: Hi la shazza, hope you are well ! Yes, all the products we sell are authorised and verified by our chosen stockist . Is there anything else I can help you with ? Thanks Facial Experts UK **Q: What % vitamin c** A: Tetrahexyldecyl ascorbate (3%): New lipid soluble vitamin C derivative with four times higher efficacy than equivalent L-ascorbic acid D-alpha tocopherol (natural vitamin E) (1.0%): antioxidant; helps protect the skin from free radical damage and acts as a network of antioxidants with vitamin C **Q: Should this be kept in the fridge?** A: No, just make sure it’s kept out of the sun and it’s often recommended not kept in bathrooms. **Q: Is it water based or oil based?** A: Oil ## Customer Reviews ### ⭐⭐⭐⭐⭐ Most try *by L***Y on 5 April 2026* I really like this, gives a nice radiance ### ⭐⭐⭐⭐⭐ Really helps my skin to hydrate *by P***P on 4 July 2026* Absorbs well into skin Its part of my morning skin regime and I have seen results ### ⭐⭐⭐⭐⭐ Brilliant reliable vitamin c serum *by A***A on 23 May 2026* This is a brilliant vitamin c serum and is a staple repurchase for me. I have rosacea sensitivity and am in my 40s so vitamin c is a staple. I find the consistency very moisturising as well. ## Frequently Bought Together - MEDIK8 C-TETRA 30 ML P06227 - Medik8 Total Moisture Daily Facial Cream - Hydrating Peptide Face Moisturizer with Hyaluronic Acid - Plumps Skin - Supports Skin Barrier - 1.6 oz --- ## 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.us/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-30ml](https://www.desertcart.us/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-30ml) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-07*