---
product_id: 74163307
title: "C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml"
brand: "medik8"
price: "$189"
currency: NZD
in_stock: true
reviews_count: 8
category: "Medik8"
url: https://www.desertcart.nz/products/74163307-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing-brightening
store_origin: NZ
region: New Zealand
---

# 7% Stabilised Vitamin C for potent brightening Lightweight jojoba oil-based hydration Low-irritation formula ideal for sensitive skin C-Tetra - Lipid 7% Vitamin C Radiance Serum - Smoothing, Brightening & Nourishing - Perfect For New Vitamin C Users or Sensitive Skin - 30ml

**Brand:** medik8
**Price:** $189
**Availability:** ✅ In Stock

## Summary

> ✨ Glow smarter, not harder — your daily dose of radiant confidence!

## Quick Answers

- **What is this?** 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?** $189 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/74163307-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing-brightening)

## 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:** 7% tetrahexyldecyl ascorbate smooths fine lines & boosts radiance without irritation.
- • **Even Tone, Every Day:** Visibly brightens and evens skin complexion for a healthy, lit-from-within look.
- • **Featherlight Nourishment:** Jojoba seed oil delivers non-greasy, comforting hydration that absorbs quickly.
- • **Complete Your Glow Ritual:** Pairs perfectly with sunscreen by day and vitamin A by night for maximum age-defying results.
- • **Sensitive Skin’s Best Friend:** Alcohol, fragrance, and paraben-free formula designed for new Vitamin C users and delicate skin.

## Overview

Medik8 C-Tetra Lipid 7% Vitamin C Radiance Serum is a lightweight, stabilised vitamin C serum formulated to brighten, smooth fine lines, and nourish sensitive skin. Featuring 7% tetrahexyldecyl ascorbate and jojoba oil, it delivers effective antioxidant protection and hydration without irritation, making it ideal for new Vitamin C users seeking a radiant, even complexion. Perfectly designed to integrate into a daily skincare routine with sunscreen and vitamin A for enhanced anti-aging benefits.

## 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: More than happy - Excellent product

## 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 | 4,212 in Beauty ( See Top 100 in Beauty ) 112 in Face Serums |
| Brand | Medik8 |
| Brand Name | Medik8 |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.5 out of 5 stars 504 Reviews |
| Item Form | Drop |
| Item Type Name | C-Tetra |
| Item Volume | 30 Millilitres |
| Item Weight | 0.09 Kilograms |
| Item height | 11.6 centimetres |
| Manufacturer | Medik8 |
| Material Features | Antioxidant |
| Material Type Free | Alcohol Free, Fragrance Free, Paraben Free, Vegan |
| Number of Items | 1 |
| 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

![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.

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

Excellent product

### ⭐⭐⭐⭐⭐ 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.

## 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.nz/products/74163307-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing-brightening](https://www.desertcart.nz/products/74163307-c-tetra-lipid-7-vitamin-c-radiance-serum-smoothing-brightening)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*