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MEDIK8 C-Tetra Advanced 30ml

MEDIK8 C-Tetra Advanced 30ml

%0 4.8 | 898 reviews
Box

£69.00

In stock

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

Product Description

Unlock next-generation brightening and antioxidant defence with C-Tetra® Advanced, powered by 20% stabilised vitamin C and skin barrier science. Clinically proven to brighten skin and visibly reduce wrinkles in just 7 days* with 0% barrier disruption,* this high-strength serum delivers transformative results without compromising skin health.

Featuring restorative phyto exosomes for deep, controlled delivery and omni-antioxidant acetyl zingerone to neutralise ageing free radicals, C-Tetra® Advanced provides targeted, age-defying protection and a visibly smoother, more radiant complexion.


*Proven via independent clinical study conducted over 4 weeks on 32 participants.

KEY BENEFITS
Dramatic Skin Brightening
Clinically proven to visibly brighten and even skin tone in just 7 days, revealing a radiant, luminous complexion.*

Enhanced Skin Barrier Support
Phyto exosomes deliver key signalling molecules, including peptides and nutrients, to support the skin barrier with 0% barrier disruption.*

Defence Against Premature Ageing
Shields skin from free radicals, pollution, and daily environmental stressors to help prevent premature skin ageing.

Smoother, More Even Texture
Clinically proven to improve skin smoothness and texture in 7 days, leaving a soft, polished finish.*

Lightweight, Fast-Absorbing Feel
The gel-serum texture hydrates, smooths, and primes skin, leaving it instantly refreshed and ready for the day.

20% Stabilised Vitamin C (Tetrahexyldecyl Ascorbate)
A highly potent yet gentle form of vitamin C for dramatic skin brightening and powerful antioxidant protection against premature skin ageing.

Phyto Exosomes
Encapsulated by nature, our phyto exosomes intelligently deliver proteins, lipids, and messenger molecules to skin cells. Together, alongside our supercharged vitamin C, they help prevent & reduce premature skin ageing by supporting healthier-looking, more resilient skin.

Acetyl Zingerone (pronounced ‘a-sea-tul')
A super-antioxidant that works synergistically with vitamin C, enhancing its efficacy while neutralising ageing free radicals and shielding skin from environmental stressors.

Multi-Weight Hyaluronic Acid
Draws moisture into the skin to instantly plump and deeply hydrate for a soft, supple complexion.

KEY INGREDIENTS
20% Stabilised Vitamin C (Tetrahexyldecyl Ascorbate)
A highly potent yet gentle form of vitamin C for dramatic skin brightening and powerful antioxidant protection against premature skin ageing.

Phyto Exosomes
Encapsulated by nature, our phyto exosomes intelligently deliver proteins, lipids, and messenger molecules to skin cells. Together, alongside our supercharged vitamin C, they help prevent & reduce premature skin ageing by supporting healthier-looking, more resilient skin.

Acetyl Zingerone (pronounced ‘a-sea-tul')
A super-antioxidant that works synergistically with vitamin C, enhancing its efficacy while neutralising ageing free radicals and shielding skin from environmental stressors.

Multi-Weight Hyaluronic Acid
Draws moisture into the skin to instantly plump and deeply hydrate for a soft, supple complexion.

N-Acetyl Glucosamine (NAG)
A barrier-supporting, gentle, skin-refiner that smooths the look of pores, while helping to increase the skin's own natural hyaluronic acid levels over time.

TEST RESULTS
7 days to visibly brighter skin<1>
7 days to visibly reduced wrinkles<1>
0% barrier disruption<1>
7 days to visibly smoother skin texture<1>
Reduces 90% of pollution damage to the skin's surface<2>
<1> Proven via independent clinical study conducted over 4 weeks on 32 participants.
<2> Proven via in vitro protein carbonylation data against particulate matter pollution on the stratum corneum and epidermis.

Directions

After cleansing in the morning, apply evenly across the face, neck & décolletage using upward strokes.

Ingredients

Aqua (Water), Tetrahexyldecyl Ascorbate, Isododecane, Propanediol, Acetyl Glucosamine, Squalane, Tocopherol, Acetyl Zingerone, Camellia Sinensis (Green Tea) Leaf Vesicles, Hydroxyacetophenone, Sodium Hyaluronate, Cellulose, Avena Sativa (Oat) Kernel Extract, Glycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Sucrose Stearate, Tetrasodium Glutamate Diacetate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Sodium Benzoate, Cellulose Gum, 1,2-Hexanediol, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Phenoxyethanol, Citral, Linalool, Limonene.

This list of ingredients may be subject to change, please consult the packaging of the product purchased.

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Rated 5 out of 5 by from Супер продукт Мені дуже подобається ця сиворотка. З нею моя шкіра виглядає світлішою, зволоженною і молодшою. Зменшилися дрібні зморшки. Обожнюю її
Date published: 2025-08-26
Rated 5 out of 5 by from Love the Tetra range! I’ve been using the Tetra C Luxe serum for a couple of months now and love the results. My skin is smoother and my complexion is much more even, the darks spots I had pretty much gone. When I ran out, I thought I’d give the C-Tetra serum and go this time, wanting something to work on deeper wrinkles. I’m still really loving the results but I think i may prefer the oil texture of the Luxe over the more creamier C-Tetra advanced. The results for both are great but I wonder if this stronger serum could also come in the same oil form as the Luxe? Or if you could advise which one would be better for me anyway. My skin tone is much more even now but I’d still like help with fine lines and some slightly deeper wrinkles.
Date published: 2025-08-26
Rated 4 out of 5 by from I do really like this I do really like this product- the texture is lovely on the face and it soaks in well. I haven’t noticed a huge change in the appearance of my skin as yet but I do like it. The only reason I haven’t rated it 5 stars is because I prefer rhe C-Tetra Luxe!
Date published: 2025-08-26
Rated 5 out of 5 by from Bright lovely skin My skin looks so lovely bright. I've had loads of comments. Couldn't live without this.
Date published: 2025-08-26
Rated 4 out of 5 by from Good product Too early to see results but like the product so far
Date published: 2025-08-26
Rated 5 out of 5 by from My products from now on. Having very reactive skin, I’m amazed at the difference this product and the other products by medik8 have made to my skin. At last I have found products that work and have transformed my life and confidence thank you. The companies help on line was wonderful.
Date published: 2025-08-26
Rated 5 out of 5 by from Great product Skin looking brighter after using the sample tube daily.
Date published: 2025-08-26
Rated 5 out of 5 by from Love this product, feels great Love this product, feels great on the skin and noticing the effects already
Date published: 2025-08-22
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