--- product_id: 34814701 title: "Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz." brand: "medik8" price: "฿8125" currency: THB in_stock: true reviews_count: 9 category: "Medik8" url: https://www.desertcart.co.th/products/34814701-medik8-c-tetra-advanced-vitamin-c-serum-smooths-fine-lines store_origin: TH region: Thailand --- # Stabilized Tetrahexyldecyl Ascorbate for potent Vitamin C delivery Vegan, gluten-free, and enriched with jojoba & squalane 30ml ultra-hydrating serum Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. **Brand:** medik8 **Price:** ฿8125 **Availability:** ✅ In Stock ## Summary > ✨ Elevate your daily glow game with Medik8’s powerhouse Vitamin C serum! ## Quick Answers - **What is this?** Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. by medik8 - **How much does it cost?** ฿8125 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/34814701-medik8-c-tetra-advanced-vitamin-c-serum-smooths-fine-lines) ## 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 - • **Glow-Boosting Hydration:** Lightweight formula absorbs fast, delivering deep moisture without stickiness. - • **Science-Backed Skincare:** Formulated by Medik8’s in-house scientists for reliable, long-term skin health results. - • **Balanced, Even Skin Tone:** Jojoba oil and squalane work together to smooth texture and fade sunspots for a radiant complexion. - • **Clean & Conscious Beauty:** 100% vegan, gluten-free, and cruelty-free—because your skin deserves ethical luxury. - • **Advanced Antioxidant Power:** Stabilized Vitamin C combined with Vitamin E and Red Ginseng fights aging and environmental damage. ## Overview Medik8 C-Tetra is a 30ml lightweight, vegan, and gluten-free Vitamin C serum featuring stabilized Tetrahexyldecyl Ascorbate, jojoba oil, and squalane. Designed to smooth fine lines, hydrate deeply, and even skin tone, it combines advanced antioxidants like Vitamin E and Red Ginseng for visible anti-aging benefits. Perfect for all skin types, this science-driven formula absorbs quickly without stickiness, making it a must-have daily ritual for radiant, resilient skin. ## Description Results Without Compromise Medik8, is a B Corp certified, British dermatological skincare brand, globally renowned for age-defying results without compromise. On a mission to simplify the route to great skin, Medik8’s CSA Philosophy of vitamin C plus sunscreen by day, and vitamin A (retinoids) by night delivers results in 3 easy steps. Results Without Compromise Medik8, is a B Corp certified, British dermatological skincare brand, globally renowned for age-defying results without compromise. On a mission to simplify the route to great skin, Medik8’s CSA Philosophy of vitamin C plus sunscreen by day, and vitamin A (retinoids) by night delivers results in 3 easy steps. 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 products simplify your daily skincare and offer professional-level results." Dr. Vasile, Double-Board Certified Dermatologist Dermatologist Recommended "Medik8 products simplify your daily skincare and offer professional-level results." Dr. Vasile, Double-Board Certified Dermatologist 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. Medik8 is proud to be 1 of only 66 beauty manufacturers worldwide with an 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 prioritizing renewable energy. Review: Light weight, radiant and balanced results - Medik8 C-Tetra Advanced has become one of my go-to morning serums. I love that it delivers all the brightening benefits of vitamin C without the irritation or heaviness that stronger formulas can sometimes cause. The texture is a lightweight gel-serum that absorbs quickly and layers beautifully under moisturizer and SPF—no stickiness, no pilling. Within a couple of weeks of consistent use, my skin looked noticeably more radiant and balanced. I also noticed a subtle plumping effect, especially through the cheeks, and my skin felt well-hydrated throughout the day. It gives that healthy, lit-from-within glow rather than an artificial shine. What really sets this serum apart for me is how gentle yet effective it feels. Even with daily use, my skin barrier stayed calm and happy, which isn’t always the case with vitamin C. It’s a great option if you want visible brightening, hydration, and antioxidant protection without compromising comfort. Overall, Medik8 C-Tetra Advanced feels like a smart, elevated vitamin C—perfect for everyday use and especially great if your skin prefers a more balanced, modern formulation. Review: Smells great and works! - Smells like oranges and works like a dream. No irritation, helps with dark spots and uneven tone. Completely worth the money! There’s no oiliness associated with it at all. ## Features - ACTIVE VITAMINS FOR SMOOTH SKIN. This vitamin C face serum with hyaluronic acid serum for face delivers a smooth, refreshed, and hydrated complexion. Suitable for sensitive skin, it works as a nourishing hydrating serum for face daily. - EVEN MORE HYDRATING, RENEWING POWER. C-Tetra Advanced facial serum combines Phyto Exosomes with super antioxidants. This antioxidant serum for face soothes, strengthens the skin barrier, and supports hydration for visibly resilient skin. - BOOSTING MOISTURE AND SKIN VIBRANCE. Our vitamin C serum for face features stabilized Tetrahexyldecyl Ascorbate in a squalane-based hydrating face serum, supporting an even-toned, smooth, and radiant complexion with daily use. - DEFEND, PROTECT, AND PLUMP. Multi-weight hyaluronic acid serum and Vitamin C in this anti aging serum hydrate, plump, and defend the skin from environmental stressors, making it a versatile gel serum for daily care. - CUTTING-EDGE SKINCARE TECHNOLOGIES. Medik8 pioneers innovative face serums and facial serums for women and men developed by expert scientists. Each skin serum is formulated for research-backed, skin-healing results and optimal hydration. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0F8P1V9WQ | | Best Sellers Rank | #19,113 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #417 in Facial Serums | | Brand | Medik8 | | Brand Name | Medik8 | | Customer Reviews | 4.6 out of 5 stars 57 Reviews | | Item Form | Cream | | Item Volume | 1 Fluid Ounces | | Item Weight | 0.14 Pounds | | Manufacturer | Medik8 | | Number of Items | 1 | | Product Benefits | Anti Wrinkle | | Scent | Unscented | | Scent Name | Unscented | | Skin Type | Normal | | Special Ingredients | Vitamin C | | Target Use Body Part | Face | | UPC | 818625027285 | | Unit Count | 1.0 Ounce | | Use for | Face | ## Product Details - **Product Benefits:** Anti Wrinkle - **Scent:** Unscented - **Skin Type:** Normal - **Special Ingredients:** Vitamin C - **Use for:** Face ## Images ![Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. - Image 1](https://m.media-amazon.com/images/I/61z5kGFJTVL.jpg) ![Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. - Image 2](https://m.media-amazon.com/images/I/71L7nKw4ZrL.jpg) ![Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. - Image 3](https://m.media-amazon.com/images/I/81XW9abAmwL.jpg) ![Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. - Image 4](https://m.media-amazon.com/images/I/81Bc+7kJmtL.jpg) ![Medik8 C-Tetra Advanced - Vitamin C Serum Smooths Fine Lines and Wrinkles - Face Serum with Hyaluronic Acid - Vegan and Gluten Free - 1.0 oz. - Image 5](https://m.media-amazon.com/images/I/819K1qqZuLL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: what percent of the ingredients is tetrahyxyldecyl ascorbate?** A: The C tetra is 7% THD ascorbate and the C Tetra Luxe is 14%. I emailed the company back about a year ago and this is what they told me. I’ve switched to a very similar one from ghost democracy that is 18% THD and doesn’t have the fragrance/essential oils because that was irritating my skin. It has the same dry oil like texture as medik8 **Q: Es duradera oh tiene corto tiempo de vida ,ocea se oxida rapido?o** A: Esta bueno ## Customer Reviews ### ⭐⭐⭐⭐⭐ Light weight, radiant and balanced results *by T***P on January 3, 2026* Medik8 C-Tetra Advanced has become one of my go-to morning serums. I love that it delivers all the brightening benefits of vitamin C without the irritation or heaviness that stronger formulas can sometimes cause. The texture is a lightweight gel-serum that absorbs quickly and layers beautifully under moisturizer and SPF—no stickiness, no pilling. Within a couple of weeks of consistent use, my skin looked noticeably more radiant and balanced. I also noticed a subtle plumping effect, especially through the cheeks, and my skin felt well-hydrated throughout the day. It gives that healthy, lit-from-within glow rather than an artificial shine. What really sets this serum apart for me is how gentle yet effective it feels. Even with daily use, my skin barrier stayed calm and happy, which isn’t always the case with vitamin C. It’s a great option if you want visible brightening, hydration, and antioxidant protection without compromising comfort. Overall, Medik8 C-Tetra Advanced feels like a smart, elevated vitamin C—perfect for everyday use and especially great if your skin prefers a more balanced, modern formulation. ### ⭐⭐⭐⭐⭐ Smells great and works! *by C***E on March 20, 2026* Smells like oranges and works like a dream. No irritation, helps with dark spots and uneven tone. Completely worth the money! There’s no oiliness associated with it at all. ### ⭐⭐⭐⭐⭐ Works great on dark spots *by L***N on April 8, 2026* This was recommended to me and it did not disappoint. I put it on a dark spot that was appearing on my cheek. Noticed significant decrease in darkness of spot after only a couple of weeks. I will be continuing to use and recommend this product. ## Frequently Bought Together - Medik8 C-Tetra - Brightening, Balancing, Plumping Daily Vitamin C Face Serum - Firms and Smooths Fine Lines and Wrinkles - With Squalane - 1.0 oz - Medik8 Crystal Retinal 3 - Brightening, Firming, Advanced Skin Retinaldehyde Serum - Smooths Wrinkles - Hyaluronic Acid, Glycerin, Vitamin E - 1 oz - Medik8 Liquid Peptides - Regenerating Multi Peptide Serum - Smooths Wrinkles and Fine Lines - Hydrating, Brightening, Plumping - 1.0 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.co.th/products/34814701-medik8-c-tetra-advanced-vitamin-c-serum-smooths-fine-lines](https://www.desertcart.co.th/products/34814701-medik8-c-tetra-advanced-vitamin-c-serum-smooths-fine-lines) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-06-04*