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Medik8 C-Tetra® 30ml

Medik8 C-Tetra® 30ml

%0 4.74 | 682 reviews
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£34.15 (£1.14 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.

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Rated 5 out of 5 by from Great I received it as a gift and didn't really believe on it but it works. Even if you don't have any sports, skin starting sparkling and become glowing.
Date published: 2025-02-16
Rated 5 out of 5 by from Vitamin C Serum Have used this for many years having been advised by a beautician after a facial. Have always been pleased with results
Date published: 2025-02-13
Rated 3 out of 5 by from Ok Smells amazing! Not too sure what this is actually doing for my skin one product I’m not sure if I will re purchase
Date published: 2025-02-08
Rated 5 out of 5 by from C-Tetra® What can I say except … I LOVE this product. Skin feels instantly revived and looks hydrated. Fine lines are less obvious and it feels really luxurious when I apply it.
Date published: 2025-02-08
Rated 5 out of 5 by from Great product Really great product. My skin feels softer and look brighter.
Date published: 2025-02-03
Rated 5 out of 5 by from C-Tetra If you want the glow go for this. I am using this regularly and it gives you amazing glow. It hydrates and doesn’t leave you oily as it gets nicely absorbed into the skin ready for your spf. Amazing product
Date published: 2025-02-02
Rated 3 out of 5 by from Seems nice Nice but I accidentally spilt it when trying to open it. I also have the C tetra Lux which is very good.
Date published: 2025-01-29
Rated 1 out of 5 by from Makes your face go read and feels like its burning Causes irritation - I had a bad reaction to this serum despite its low concentration. My face turned red immediately, followed by a burning sensation that lasted for days. It made my skin feel warm and very uncomfortable. I’m unsure if a vitamin C serum is necessary in a daily routine, but this one didn’t work for me. Patch test before use!
Date published: 2025-01-29
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Can I use this serum under eyes?

Asked by: Ganna
Yes absolutely! 
Answered by: Tracy
Date published: 2022-10-04

What % vitamin c?

Asked by: Momina
The tetrahexyldecyl ascorbate (Vitamin C) in C-Tetra serum is 7%.
Answered by: Zowie
Date published: 2023-03-11

What percentage of vitamin c does this contain?

Asked by: Amanda
30%
Answered by: Malwina
Date published: 2023-02-28
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