--- product_id: 74141250 title: "C-Tetra Luxe, Lipid 14% Vitamin C Enhanced Radiance Serum - 30ml" brand: "medik8" price: "611.15 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/74141250-c-tetra-luxe-lipid-14-vitamin-c-enhanced-radiance-serum store_origin: TN region: Tunisia --- # Optimised red ginseng boost Deep hydration with squalane & vitamin F 14% Stabilised Vitamin C potency C-Tetra Luxe, Lipid 14% Vitamin C Enhanced Radiance Serum - 30ml **Brand:** medik8 **Price:** 611.15 DT **Availability:** ✅ In Stock ## Summary > ✨ Glow smarter, not harder with Medik8 C-Tetra Luxe! ## Quick Answers - **What is this?** C-Tetra Luxe, Lipid 14% Vitamin C Enhanced Radiance Serum - 30ml by medik8 - **How much does it cost?** 611.15 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/74141250-c-tetra-luxe-lipid-14-vitamin-c-enhanced-radiance-serum) ## 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 - • **Youthful Glow, Fast:** Clinically proven 14% tetrahexyldecyl ascorbate delivers instant radiance and skin rejuvenation. - • **Effortless AM Ritual:** Just 6 drops post-cleanse for a radiant base before sunscreen—perfect for busy mornings. - • **Target Dark Spots Like a Pro:** Powerful formulation visibly reduces dark spots for an even, luminous complexion. - • **Sustainably Luxurious Skincare:** B Corp certified, crafted in the UK with eco-conscious innovation and medical-grade efficacy. - • **Hydration Meets Barrier Support:** Squalane and vitamin F deeply nourish and strengthen your skin’s natural defenses. ## Overview Medik8 C-Tetra Luxe is a 30ml advanced radiance serum featuring 14% stabilised vitamin C (tetrahexyldecyl ascorbate) enhanced with red ginseng for brightening and dark spot reduction. Enriched with squalane and vitamin F, it provides deep moisturisation and skin barrier support. Clinically proven and B Corp certified, this UK-made serum fits seamlessly into a professional’s skincare routine for visible anti-aging results. ## Description C-Tetra Luxe Surface Radiance Cleanse Press & Glow Advanced Day Ultimate Liquid Peptides Crystal Retinal Advanced Night Restore 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. 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. ''Medik8 combines medical-grade efficacy with cutting-edge skincare innovation.’' Dr. Ewoma Ukeleghe, Medical & Cosmetics Doctor 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. From the Experts in Vitamin A Founded in 2009 by UK scientists and brothers, Elliot & Daniel Isaacs, Medik8 is renowned for skincare innovations. 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. ## Features - INSTANT SKIN YOUTHFULNESS - 14% Stabilised Vitamin C (tetrahexyldecyl ascorbate), boosted with optimised red ginseng for skin-brightening and youth-boosting power. - DARK SPOT REDUCTION - Delivers powerful action on the appearance of dark spots. - TOTAL SKIN NOURISHMENT - Enhanced with squalane and vitamin F for deep moisturisation and skin barrier support. - HOW TO USE - Step 1: After cleansing in the morning, massage 6 drops of C-Tetra Luxe 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 | B07GS2X7ZL | | Batteries | 1 A batteries required. | | Best Sellers Rank | 250 in Face Serums | | Date First Available | 23 Aug. 2018 | | Is Discontinued By Manufacturer | No | | Item Model Number | P08887 | | Language | English | | Manufacturer | Medik8 | | Product Dimensions | 3.6 x 5.1 x 11.5 cm; 80 g | ## Product Details - **Active ingredients:** 14% Stabilised Vitamin C, Squalane, Maracuja Oil, Optimised Red Ginseng, Vitamin E - **Brand:** Medik8 - **Item form:** Drop - **Material Type Free:** Alcohol Free, Fragrance Free, Paraben Free, Vegan - **Material feature:** Vegan - **Product benefits:** Brightens Skin Tone & Minimises Signs of Ageing - **Scent:** No Artificial Fragrance - **Skin type:** Dry - **Special ingredients:** 14% Stabilised Vitamin C, Maracuja Oil, Optimised Red Ginseng, Squalane, Vitamin E - **Use for:** Face, Neck ## Images ![C-Tetra Luxe, Lipid 14% Vitamin C Enhanced Radiance Serum - 30ml - Image 1](https://m.media-amazon.com/images/I/61FWxuq+vLL.jpg) ## Available Options This product comes in different **Size Name** options. ## 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 ### ⭐⭐⭐⭐⭐ Healthy glowing skin *by on Reviewed in the United Kingdom 26 February 2026* Brilliant product. I started using it about 15 years ago, nothing works like it. It makes your skin glow and my skin just looks and feels better. Love it. ### ⭐⭐⭐⭐⭐ Reduced my turkey neck significantly *by on Reviewed in the United Kingdom 31 May 2025* Was seriously looking at getting a lower facelift as looking at my neck and the "waddle" that comes with age was depressing the hell out of me. My aesthetics nurse recommended this and I've never looked back. I'm never going to look 25 again but skin is firmer and glows. Would recommend for ladies of a certain age. Not cheap and bottle last only about 5 weeks but cheaper than a face lift ### ⭐⭐⭐⭐ Very good *by on Reviewed in the United Kingdom 11 July 2026* The product is very good ## Frequently Bought Together - Medik8 C-Tetra Luxe - Lipid 14% Vitamin C Enhanced Radiance Serum -Smooths Fine Lines & Uneven Tone - Antioxidant & Nourishing - Dull, Dry Skin Types - 30ml - Medik8 Crystal Retinal 3 - Age-Defying Retinal Night Serum - Improves Wrinkles & Skin Firmness- 0.03% Retinal Strength - 11x Faster than Retinol - For New Vitamin A Users - 30ml - Medik8 Advance Day Ultimate Protect - SPF 50+ Age-Defying Moisturiser with Photolyase SPF 50+ PA++++ - Hydrating & Non-Greasy UV Protection - With Age-Defying DNA Repair Enzymes - 50ml --- ## 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.tn/products/74141250-c-tetra-luxe-lipid-14-vitamin-c-enhanced-radiance-serum](https://www.desertcart.tn/products/74141250-c-tetra-luxe-lipid-14-vitamin-c-enhanced-radiance-serum) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-29*