Medik8 C-Tetra Vitamin C Face Serum - Radiance and Smooth Skin - Anti-Aging Formula - 1.0 oz

Previous page Results Without Compromise from the brand

Medik8, a British dermatological skincare brand certified as B Corp, is globally renowned for delivering age-defying results without compromise. With a mission to simplify the route to great skin, Medik8’s CSA Philosophy consists of vitamin C plus sunscreen by day, and vitamin A (retinoids) by night, delivering results in 3 easy steps.

Clinically Proven Results

We take pride in the visible skincare results our customers achieve, thanks to our best professional grade active ingredients expertly crafted into products that are easy to use, all without needing a prescription. Our products are clinically proven via independent studies, and are robustly researched and rigorously tested.

Dermatologist Recommended

"Medik8 products simplify your daily skincare and offer professional-level results," says Dr. Vasile, a 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.

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. 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.

Product Description

Youth Replenish Duo Age Defy Duo Youthful Glow Duo Winter's Bright Duo Glow To Go Trio

Customer Reviews

4.0 out of 5 stars 16 4.1 out of 5 stars 9 4.9 out of 5 stars 8 4.0 out of 5 stars 22 4.1 out of 5 stars 12

Vegan ✓ ✓ ✓ ✓ ✓ Paraben Free ✓ ✓ ✓ ✓ ✓ Phthalate Free ✓ ✓ ✓ ✓ ✓

About The Founders

Skincare visionary, Elliot Isaacs, a graduate of pharmacology and biochemistry, launched Medik8 in 2009. In 2011, he joined forces with his chemistry-graduate brother, Daniel, and the innovating duo quickly became known as ‘The Chemical Brothers’ for their forward-thinking skincare research.

Brand Values

Clinical Skincare 100% Vegan, Paraben & Phthalate Free, Animal Cruelty Free Carbon Neutral Formulated and Manufactured at Medik8's owned laboratories and facilities right outside of London.

A HEALING SERUM FOR SMOOTH SKIN. This skin brightener is perfect for Vitamin C beginners - a nourishing Vitamin C serum designed to deliver glowing, radiant, and refreshed skin with daily use. Ideal for all skin types, even the most sensitive.

SKIN THAT GLOWS FROM WITHIN. Recovery for dull, tired skin. C-Tetra is formulated to reduce visible signs of aging, like wrinkles and fine lines, with a clearing, tightening blend of Vitamin C and soothing oil that revives a dry or crepey complexion.

BOOSTING MOISTURE AND SKIN VIBRANCE. C-Tetra features an upgraded level of Tetrahexyldecyl Ascorbate, a stabilized, low irritation version of Vitamin C. The squalane-based serum helps to support a visibly luminous, even-toned, clear complexion.

CLEARING AND COLOR CORRECTING. This Jojoba-infused, lightweight facial serum is a refreshing moisturizing treatment that sinks deep into skin instantly after application, working to restore skin to a visibly smoother, more even-toned state.

CUTTING-EDGE SKINCARE TECHNOLOGIES. Medik8 pioneers cutting-edge skincare technologies, with products are designed by our in-house formulation scientists and researchers dedicated to delivering the most well-researched, skin-healing results.

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