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Medik8 C-Tetra® 30ml

Medik8 C-Tetra® 30ml

%0 4.75 | 653 reviews
Box

£34.15 (£1.14 per ML)

In stock

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

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.

+Offer

FREE Hydr8 B5 Intense 30ml when you spend £90 on Medik8.*

Medik8’s ultimate hyaluronic acid serum, reveal a visibly plumper and smoother-looking complexion in just 24 hours* with Hydr8 B5 Intense. 

 

*One free gift per order. Valid until the 26th of January or whilst stock lasts. Your free gift will automatically add to the shopping bag page. Total at order summary must be £90 or more worth of Medik8 products, after any Promotion Code, Brands You Love discount and before delivery charges are applied. Cannot be used in conjunction with any other Promotion and this offer is not applicable to previously made or pending purchases.

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Rated 4 out of 5 by from Gives my skin a lovely [This review was collected as part of a promotion.] Gives my skin a lovely glow due to being a serum, however I have not yet noticed any long lasting effects. Will continue to use until I finish the bottle and hope to see some skin brightening! Does not irritate or cause any spots as some alternative brands have in the past.
Date published: 2025-01-15
Rated 5 out of 5 by from Would recommend [This review was collected as part of a promotion.] Some vitamin c serums are quite sticky which this is not.
Date published: 2025-01-15
Rated 2 out of 5 by from Better if it was in [This review was collected as part of a promotion.] Better if it was in a pump bottle and less scented
Date published: 2025-01-15
Rated 5 out of 5 by from Beautifully luxurious. [This review was collected as part of a promotion.] Beautifully luxurious treatment. Sinks into the skin effortlessly without leaving it feel greasy. Gorgeous smelling too. I use in combination with Daily Radiance Vit C Cream.
Date published: 2025-01-14
Rated 5 out of 5 by from A Fab Product [This review was collected as part of a promotion.] I tried this previously and then moved to a different serum. Came back to it because it is the best - it feels great on the skin, smells fresh and I get visible results. Say no more.
Date published: 2025-01-14
Rated 5 out of 5 by from Excellent product. Brightened my skin [This review was collected as part of a promotion.] Excellent product. Brightened my skin within a week.
Date published: 2025-01-14
Rated 5 out of 5 by from Smells amazing and brightens [This review was collected as part of a promotion.] Smells incredible like oranges, really wakes you up in the morning & can see my skin is looking much more alive and less dull! Great for winter to give your skin that much needed boost
Date published: 2025-01-13
Rated 5 out of 5 by from Great [This review was collected as part of a promotion.] Goes on beautifully Leaves a great glow Smells nice Great product. Pigmentation has reduced
Date published: 2025-01-13
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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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