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Medik8 C-Tetra® 30ml

Medik8 C-Tetra® 30ml

%0 4.73 | 778 reviews
Box

£42.00 (£1.40 per ML)

In stock

If you like we can let you know when we have some more.

Product Description

Restore the appearance of skin radiance in just 7 days* with Medik8’s cult favourite C-Tetra serum.

Expertly formulated by their skincare experts with a stabilised form of vitamin C (tetrahexyldecyl ascorbate ), this lightweight serum reduces the appearance of fine lines and wrinkles and visibly brightens uneven skin tone - all while remaining gentle on sensitive skin.

The addition of antioxidant-rich vitamin E protects the skin against the damaging and ageing effects of free radicals for a more healthy, youthful-looking complexion overall. The perfect daily serum for those who are new to vitamin C, or have sensitive skin.
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.

Key Benefits:
Increased Skin Youthfulness
Proven to smooth the appearance of fine lines and wrinkles and visibly boost skin's radiance in 7 days*
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.

Brighter, More Even Complexion
Proven to visibly brighten the skin in 7 days* and reduce the appearance of wrinkles & dark spots in 4 weeks*
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.

Gentle, Lightweight Nourishment
The jojoba seed oil-based formula delivers non-greasy yet effective nourishment for visibly comforted and softer skin.
87% of sensitive skins agree this is the most gentle vitamin C serum they have ever used*
96% of sensitive skins agreed C-Tetra was gentle on the skin*
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.

Proven Results:
7 days to restored skin radiance*
7 days to visibly brighter
96% of sensitive skins agreed C-Tetra was gentle on the skin*
4 weeks to visibly reduced wrinkles & dark spots*
90% agree skin feels instantly softer*
*Proven via independent consumer study conducted over 4 weeks on 52 participants with sensitive skin.

Key Ingredients:
Stabilised Vitamin C (tetrahexyldecyl ascorbate)
This stable, low-irritation form of vitamin C is incredibly effective on the skin; delivering exceptional protection against ageing free radicals. Supporting collagen production and brightening the skin tone, it leaves the complexion visibly more even, radiant and youthful-looking.

Vitamin E
Rich in antioxidants, vitamin E helps to protect the skin against ageing free radicals. It also helps to boost the power of vitamin C for maximum visible results.

Good to Know:
NO ARTIFICIAL FRAGRANCE
NO SYNTHETIC COLOURS
PARABEN FREE
CERTIFIED BY THE VEGAN SOCIETY

Directions

STEP 1
After cleansing in the morning, massage 4 drops across the face, neck and décolletage.

STEP 2
Leave to absorb before applying sunscreen. We recommend Advanced Day Ultimate Protect.

How to Layer C-Tetra
AM: Apply C-Tetra after cleansing and toning in your morning skincare routine. Always follow with sunscreen.

Ingredients

Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.

See more...

Rated 5 out of 5 by from Beautiful smelling and effective serum Beautiful smelling and effective serum that has made my skin texture smoother and glowy. I have been using product for about a fortnight now and delighted with results.
Date published: 2025-05-24
Rated 5 out of 5 by from Ive decided to try this Ive decided to try this product after long researching , wanted to try something diferente from what I was using. So far I like the results.
Date published: 2025-05-24
Rated 5 out of 5 by from Love One of the best vitamin C I have tried. Makes my skin so glowy without leaving it greasy. Love this!
Date published: 2025-05-23
Rated 5 out of 5 by from Love that’s it sinks in Love that’s it sinks in quickly and leaves my skin soft and feeling nourished. Great under the SPF day cream, I find that they work together well.
Date published: 2025-05-23
Rated 4 out of 5 by from Smooth Smooth and easy to apply on the skin. Only 4start because I just started using it and yet to see the results
Date published: 2025-05-23
Rated 5 out of 5 by from Lovely texture, skin appears brighter Lovely texture, skin appears brighter even after a few days of use.
Date published: 2025-05-22
Rated 5 out of 5 by from love this easy to use love this easy to use Vit C serum, really great for my sensitive skin
Date published: 2025-05-21
Rated 5 out of 5 by from Lovely product, feels really nice Lovely product, feels really nice when applied to the skin and definitely makes my skin look brighter and my complexion look more even. I wouldn’t use another product goods forward
Date published: 2025-05-15
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Can I use this serum under eyes?

Asked by: Anonymous
Yes absolutely! 
Answered by: Anonymous
Date published: 2023-05-24

What % vitamin c?

Asked by: Anonymous
The tetrahexyldecyl ascorbate (Vitamin C) in C-Tetra serum is 7%.
Answered by: Anonymous
Date published: 2023-05-24

What percentage of vitamin c does this contain?

Asked by: Anonymous
30%
Answered by: Anonymous
Date published: 2023-03-04
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