---
product_id: 74163307
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: "€ 80.70"
currency: EUR
in_stock: true
reviews_count: 13
category: "Medik8"
url: https://www.desertcart.ie/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing
store_origin: IE
region: Ireland
---

# Fast-absorbing, lightweight formula 7% Stabilised Vitamin C boosts radiance Jojoba oil nourishes without greasiness 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:** € 80.70
**Availability:** ✅ In Stock

## Summary

> 🌟 Unlock radiant skin with every drop — your glow, your power.

## 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?** € 80.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/74163307-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

- • **Brighten Up Your Day:** Effectively evens skin tone with a low-irritation, stabilised Vitamin C perfect for sensitive skin.
- • **Complete Your Glow-Up:** Pair with Medik8’s CSA Philosophy—Vitamin C by day, Vitamin A by night—for maximum age-defying results.
- • **Effortless Morning Ritual:** Quick-absorbing serum that layers seamlessly under sunscreen for daily protection and glow.
- • **Youthful Glow, Guaranteed:** 7% tetrahexyldecyl ascorbate smooths fine lines & wrinkles for visibly younger skin.
- • **Nourishment Without the Weight:** Jojoba seed oil delivers deep hydration that feels light and non-greasy all day long.

## Overview

Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum is a lightweight, jojoba oil-based formula featuring stabilised tetrahexyldecyl ascorbate to brighten, smooth, and nourish sensitive skin. Ideal for new Vitamin C users, it visibly reduces fine lines and evens skin tone while absorbing quickly for easy layering under sunscreen. Alcohol-free and vegan, this 30ml serum is a must-have for a professional, radiant complexion.

## Description

Buy Medik8 C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml at desertcart UK. Free delivery on eligible orders.

Review: Fast drying and easy to apply. - This is a lovely vitamin c for your face. It dries quickly and feels great on my face.
Review: Love this product - Excellent vitamin C serum. Very well priced compared to many out there. I always seem to breakout more if for some reason I dont use it. Makes my skin glow more also.

## 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 |
| Batteries | 1 A batteries required. |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 1,691 in Beauty ( See Top 100 in Beauty ) 60 in Face Serums |
| Colour | Medik8 C-Tetra Lipid Vitamin C Antioxidant Serum 1.0 oz |
| Customer Reviews | 4.5 4.5 out of 5 stars (515) |
| Date First Available | 13 Aug. 2018 |
| Item Form | Drop |
| Item Weight | 90 g |
| Item model number | P06227 |
| Number of Items | 1 |
| Pet Life Stage | Adult |
| Pet Type | Men, women |
| Product Dimensions | 2.6 x 5.1 x 11.6 cm; 90 g |
| Quantity | 1 |
| Size | 30 ml (Pack of 1) |
| Special features | Alcohol Free, Vegan |
| Specific Uses | Uneven Skin Tone, Wrinkles |
| Volume | 30 Millilitres |

## 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 - 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 **Pattern** 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

### ⭐⭐⭐⭐⭐ Fast drying and easy to apply.
*by L***! on 9 December 2025*

This is a lovely vitamin c for your face. It dries quickly and feels great on my face.

### ⭐⭐⭐⭐⭐ Love this product
*by O***K on 26 August 2025*

Excellent vitamin C serum. Very well priced compared to many out there. I always seem to breakout more if for some reason I dont use it. Makes my skin glow more also.

### ⭐⭐⭐⭐⭐ More than happy
*by S***Y on 28 December 2025*

Excellent product

## 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

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**Shop now:** [https://www.desertcart.ie/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing](https://www.desertcart.ie/products/74163307-medik8-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-17*