--- product_id: 347160622 title: "Medik8 C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml" brand: "medik8" price: "$159.42" currency: USD in_stock: true reviews_count: 5 category: "Medik8" url: https://www.desertcart.us/products/347160622-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing store_origin: US region: United States of America --- # Smooths fine lines & wrinkles 7% Stabilised Vitamin C boosts radiance Jojoba oil-based lightweight nourishment Medik8 C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml **Brand:** medik8 **Price:** $159.42 **Availability:** ✅ In Stock ## Summary > ✨ Unlock your skin’s glow with science-backed radiance! ## Quick Answers - **What is this?** Medik8 C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml by medik8 - **How much does it cost?** $159.42 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/347160622-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing) ## 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 - • **Anti-Ageing Synergy:** Part of Medik8’s CSA routine—vitamin C by day, vitamin A by night—for maximum age-defying benefits. - • **Glow-Boosting Power:** 7% tetrahexyldecyl ascorbate delivers potent, stable vitamin C for a radiant, youthful complexion. - • **Gentle Yet Effective:** Low-irritation formula perfect for sensitive skin and new vitamin C users—no redness, just results. - • **Fast Absorbing Ritual:** Absorbs quickly to prep skin for sunscreen and moisturizer, making your morning routine effortlessly effective. - • **Lightweight Nourishment:** Jojoba seed oil base hydrates deeply without greasy residue, leaving skin soft and comfortable all day. ## Overview Medik8 C-Tetra is a 30ml lipid vitamin C serum featuring 7% stabilised tetrahexyldecyl ascorbate, designed to brighten, smooth fine lines, and nourish sensitive skin with a lightweight jojoba oil formula. Ideal for daily use, it enhances skin radiance while supporting an anti-ageing skincare routine. ## Description Medik8 C-Tetra 30ml - Lipid Vitamin C Antioxidant Serum.C-Tetra is a daily, 100% stable vitamin C serum containing the non-irritating tetrahexyldecyl ascorbate.Potent in its antioxidant power, C-Tetra also contains vitamin E. Together, vitamins C and E come together to help combat sun and pollution-induced damage.Fine lines and wrinkles, uneven skin tone and dry skin are targeted as the lightweight, jojoba-based formula sinks in quickly to visibly brighten, refresh and reinvigorate the skin with daily use. Medik8 recommend a simple, highly effective anti-ageing strategy of using vitamin C and sunscreen in the morning and vitamin A at night. This strategy is called: CSA.Product DirectionsAfter cleansing, apply 6 drops of C-Tetra across the face, neck and décolletage. Once the product has absorbed into the skin, apply moisturiser. Review: Prodotto eccellente arrivato nei tempi previsti. Review: Excellent product, long time user as recommended by my dermatologist. Lightweight, absorbs super fast, lovely scent and really brightens up my skin! To use every morning after clean/tone and before moisturizer. ## 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 | | ASIN | B07GFS6WXH | | Batteries | 1 A batteries required. | | Best Sellers Rank | #40,791 in Beauty ( See Top 100 in Beauty ) #148 in Facial Cleansing Creams | | Customer reviews | 4.5 4.5 out of 5 stars (493) | | Date First Available | 15 February 2016 | | Is Discontinued By Manufacturer | No | | Item model number | P06227 | | Item model number | P06227 | | Manufacturer | Medik8 | | Manufacturer | Medik8 | | Product Dimensions | 2.6 x 5.1 x 11.6 cm; 90 g | | Product Dimensions | 2.6 x 5.1 x 11.6 cm; 90 g | ## Product Details - **Product benefits:** Brightens Skin Tone & Minimises Signs of Ageing - **Scent:** Fresh - **Skin type:** Sensitive - **Special ingredients:** antioxidants, vitamin a, vitamin c - **Use for:** Face ## Images ![Medik8 C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml - Image 1](https://m.media-amazon.com/images/I/619Ttc7Pd6L.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by E***. on 16 September 2025* Prodotto eccellente arrivato nei tempi previsti. ### ⭐⭐⭐⭐⭐ Review *by A***S on 15 November 2020* Excellent product, long time user as recommended by my dermatologist. Lightweight, absorbs super fast, lovely scent and really brightens up my skin! To use every morning after clean/tone and before moisturizer. ### ⭐⭐⭐⭐⭐ Review *by G***C on 5 June 2024* A pesar de no recibirlo directo del proveedor fabricante, llegó bien empacado y rápido, el producto lo usó hace meses y es súper bueno para mi piel ## 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/347160622-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing](https://www.desertcart.us/products/347160622-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-08*