Discover a visibly brighter, smoother, and energised eye area each morning with C-Tetra Eye.

Harnessing the proven age-defying powers of Medik8's C-Tetra facial serums, C-Tetra Eye is expertly designed to deliver powerful visible results while being lightweight, fast-absorbing and gentle enough for your delicate eye area.

Formulated with stabilised tetrahexyldecyl ascorbate (pronounced 'tetra-hexul-deckul as-CORR-bate'), this eye-specialist vitamin C serum works to smooth the look of fine lines and wrinkles around the eyes while visibly brightening and deeply nourishing for a more revitalised eye appearance overall.

C-Tetra® Eye

Name: C-Tetra® Eye
Brand: Medik8
SKU: P08883
Price: 27.00 USD
Availability: InStock
Rating: 4.8 (215 reviews)

Lipid Vitamin C Radiance Serum Full Details

Size: 7ml

Product variants

C-Tetra® Eye

KEY BENEFITS

Fine Line Reduction

Visibly smooths fine lines and wrinkles around the eyes for a firmer, more youthful-looking eye area.
Visibly Brighter & Awakened Eye Area

Works to visibly brighten the skin tone, improving the look of under eye darkness and discolouration.
Vitamin C Power For Delicate Eyes

The stable formula delivers the renowned smoothing, brightening and antioxidant benefits of vitamin C while being gentle and lightweight enough for the delicate eye area.

HOW TO USE

How To Use

After cleansing in the morning, apply a small amount across the brow bone and under-eye area - avoiding the eyelids.

LOVED & RECOMMENDED

Leaves the eye area visibly youthful and awakened.

DANIEL ISAACS

Chief Product Officer
Gentle...and layers well beneath make-up.

ROBERTA SCHROEDER

Ecommerce Editor - Harper's Bazaar
I am delighted...my eye area appears more smooth and radiant

GAIL T

Verified Medik8 Customer

KEY INGREDIENTS

3% Stabilised Vitamin C (tetrahexyldecyl ascorbate)

A low-irritation form of vitamin C that delivers exceptional antioxidant protection against harmful free radical damage while brightening and supporting collagen production for a visibly even, more youthful-looking complexion.
Vitamin E

A powerful antioxidant that provides additional antioxidant protection against the ageing effects of free radicals. It also helps to boost the power of retinol for optimum visible results.

THE SCIENCE BEHIND THE FORMULA

It is exceptionally difficult to formulate a vitamin C serum that will retain its power over time. That's because vitamin C is notoriously unstable, meaning its effectiveness can be compromised when it comes into contact with light, heat or air. That's why we have chosen to formulate C-Tetra Eye with an extremely stable form of vitamin C (tetrahexyldecyl ascorbate), so you can be sure that your vitamin C is still as potent and effective 6 months after you first opened it.

GOOD TO KNOW

NO ARTIFICIAL FRAGRANCE
NO SYNTHETIC COLOURS
PARABEN FREE
ALCOHOL FREE
CERTIFIED BY THE VEGAN SOCIETY

FAQS

What's the difference between C-Tetra Eye and C-Tetra / C-Tetra Luxe?

+
C-Tetra Eye is our stabilised vitamin C serum for the delicate eye area, while C-Tetra and C-Tetra Luxe are our stabilised vitamin C serums for the face. They work in perfect harmony to deliver vitamin C's renowned brightening, smoothing and antioxidant benefits across the face as well as the delicate eye area.
How do I use C-Tetra Eye alongside C-Tetra / C-Tetra Luxe?

+
After cleansing in the morning, apply C-Tetra Eye around the eye area. Follow by applying C-Tetra or C-Tetra Luxe across the rest of the complexion.
Can I use C-Tetra Eye alongside vitamin A formulas?

+
Absolutely. In fact we recommend it as part of our pioneering CSA Philosophy which champions vitamin C plus sunscreen by day, vitamin A by night as the simple secret to glowing, youthful-looking skin.
Can I use C-Tetra Eye if I'm pregnant or breastfeeding?

+
As a cosmetics company, we are unable to provide product advice in relation to medical conditions such as pregnancy. We would recommend discussing the ingredients with your GP or midwife before use. As general guidance, this product does not contain any ingredients which we would recommend to avoid during pregnancy, unless advised by your doctor.

C-Tetra® Eye

DERMATOLOGIST RECOMMENDED

CLINICAL RESULTS

AGE-DEFYING EXPERTS

MADE IN THE UK

B CORP CERTIFIED

New Liquid Peptides Advanced MP

Crystal Retinal

Crystal Retinal Ceramide Eye

Advanced Night Restore

C-Tetra Luxe

Liquid Peptides Advanced MP

Hydr8 B5 Intense

CSA Philosophy

CSA Regimes

Cleansing regimes

Clinical & Consumer Trials

Why You Should Apply Sunscreen Everyday

Discover Crystal Retinal

The CSA Philosophy

Meet Our Experts

Proudly B Corp

Liquid Peptides vs Liquid Peptides Advanced MP: What’s The Difference?

The Benefits of Retinaldehyde

Your Bag is empty

C-Tetra® Eye

Lipid Vitamin C Radiance Serum Full Details

Sorry, this product is currently out of stock

KEY BENEFITS

Fine Line Reduction

Visibly Brighter & Awakened Eye Area

Vitamin C Power For Delicate Eyes

HOW TO USE

How To Use

LOVED & RECOMMENDED

KEY INGREDIENTS

THE SCIENCE BEHIND THE FORMULA

GOOD TO KNOW

FAQS

What's the difference between C-Tetra Eye and C-Tetra / C-Tetra Luxe?

How do I use C-Tetra Eye alongside C-Tetra / C-Tetra Luxe?

Can I use C-Tetra Eye alongside vitamin A formulas?

Can I use C-Tetra Eye if I'm pregnant or breastfeeding?

Complete Your Regime

ALL REVIEWS