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Making skin care simple, Medik8 takes the fuss out of caring for your complexion. Powered by three key ingredients: vitamin C, vitamin A and non-negotiable SPF, the brand's signature skin care saviours are famed for their potent potions. Discover the C-Tetra Serum (30ml), the brand's introductory vitamin C treatment that delivers a brighter, more even complexion.
Are you looking for the perfect entry point to vitamin C? Cue the C-Tetra Serum (30ml) from Medik8.
Formulated with tetrahexyldecyl ascorbate (AKA stabilised vitamin C) at a 7% potency, this stabilised vitamin C serum (which is suitable for sensitive skin) works to brighten uneven skin tone while reducing the appearance of dark spots, fine lines and wrinkles. Infused with antioxidant-rich vitamin E, it protects against free radical damage while nourishing jojoba seed oil delivers a super soft, comforting feel. The result? A healthy-looking complexion in no time.
After cleansing in the morning, massage four drops across the face, neck and décolletage. Leave to absorb before applying sunscreen.
Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
- Medik8
- 30ml
Transparency lies at the heart of our philosophy which is why we have partnered with tech-platform – Provenance – to cut through the industry ‘noise’ and equip you with key facts that matter. A 'proof point' with a green tick means a third party has verified the accuracy of the statement whereas no green tick means that there isn't independent confirmation (yet!), but that the brand has still supplied substantiating evidence (which you can view yourself). Discover the proof points for this product below.
Frequently Bought Together
![Medik8 C-Tetra Serum 30ml Medik8 C-Tetra Serum 30ml](https://static.thcdn.com//productimg/130/130/11795619-5095143642521801.jpg)
![Medik8 C-Tetra Serum 30ml Medik8 C-Tetra Serum 30ml](https://static.thcdn.com//productimg/130/130/11795619-5095143642521801.jpg)
![Medik8 Advanced Night Restore Medik8 Advanced Night Restore](https://static.thcdn.com//productimg/130/130/11899389-1705143644176850.jpg)
Total Price: £98.00
Add both to basket![Medik8 C-Tetra Serum 30ml Medik8 C-Tetra Serum 30ml](https://static.thcdn.com//productimg/130/130/11795619-5095143642521801.jpg)
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4 instalments of £9.75 with clearpay Learn more
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Making skin care simple, Medik8 takes the fuss out of caring for your complexion. Powered by three key ingredients: vitamin C, vitamin A and non-negotiable SPF, the brand's signature skin care saviours are famed for their potent potions. Discover the C-Tetra Serum (30ml), the brand's introductory vitamin C treatment that delivers a brighter, more even complexion.
Are you looking for the perfect entry point to vitamin C? Cue the C-Tetra Serum (30ml) from Medik8.
Formulated with tetrahexyldecyl ascorbate (AKA stabilised vitamin C) at a 7% potency, this stabilised vitamin C serum (which is suitable for sensitive skin) works to brighten uneven skin tone while reducing the appearance of dark spots, fine lines and wrinkles. Infused with antioxidant-rich vitamin E, it protects against free radical damage while nourishing jojoba seed oil delivers a super soft, comforting feel. The result? A healthy-looking complexion in no time.
After cleansing in the morning, massage four drops across the face, neck and décolletage. Leave to absorb before applying sunscreen.
Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.
For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption.
- Medik8
- 30ml
Transparency lies at the heart of our philosophy which is why we have partnered with tech-platform – Provenance – to cut through the industry ‘noise’ and equip you with key facts that matter. A 'proof point' with a green tick means a third party has verified the accuracy of the statement whereas no green tick means that there isn't independent confirmation (yet!), but that the brand has still supplied substantiating evidence (which you can view yourself). Discover the proof points for this product below.
Frequently Bought Together
![Medik8 C-Tetra Serum 30ml Medik8 C-Tetra Serum 30ml](https://static.thcdn.com//productimg/130/130/11795619-5095143642521801.jpg)
![Medik8 C-Tetra Serum 30ml Medik8 C-Tetra Serum 30ml](https://static.thcdn.com//productimg/130/130/11795619-5095143642521801.jpg)
![Medik8 Advanced Night Restore Medik8 Advanced Night Restore](https://static.thcdn.com//productimg/130/130/11899389-1705143644176850.jpg)
Total Price: £98.00
Add both to basket![Medik8 C-Tetra Serum 30ml Medik8 C-Tetra Serum 30ml](https://static.thcdn.com//productimg/130/130/11795619-5095143642521801.jpg)
Customer Reviews
Top Customer Reviews
Thanks for sharing your thoughts! Please remember that results will vary from person to person. We're proud to say that all customer reviews are independent, authentic and do not represent the views of Cult Beauty or The Hut Group.
Marvellous Medik8!
I am a big fan of Medik8 products as they are easy to apply, feel good quality, and do not irritate my skin. I have used a few vitamin C serums and this is my favourite one so far. I have repeatedly purchased this item so would definitely recommend!
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Great
My favourite vitamin C it doesn’t pill with other products and is really glowy
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Gorgeous glow
I love this vitamin C serum. It gives my skin a lovely glow without any itritation that I have had with other vitamin C serums.  The bottle really does last a long time as you only need a few drops. I wouldn’t be without it in my skincare routine Â
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My go to Vitamin x C
This is my go to Vitamin C which I wear every morning (sometimes I treat myself to the luxe version which is more expensive but more potent). It has an oily texture which sits fine under my SPF, but probably not the best for oily skin types.
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Thin oil
Can’t quite describe the texture of this but all I can say it’s like a thin oil?? Not a huge fan of oily textures on my skin but it does absorb into the skin really well. Smells really nice too. Haven’t seen any difference in my skin but I like using it.Â
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Glowing
Love this product, I look glowing all day.Â
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A keeper!
I've found it difficult to find a vitamin c serum that works for me. This seems to do the job, as long as I don't get anywhere near my eyes. I'd buy it again.
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A Staple product
I love this. It’s pricey but worth it. I’ve used before and decided to try other cheaper ones for comparison. Nothing compares! It is very watery going on which at first seems weird, but it feels great on the skin and it excellent for reducing fine lines and dark spots. Smells a bit strange, but yet to find a good nice smelling vitamin c product!
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Medik-8 tetra serum
This is the one product I couldn't be without. I use it every morning before moisturiser & love the way it instantly hydrates my skin & gives it a glow. Â
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Great product
This is such a lightweight thin texture (like an oil but not at all greasy!) smells of oranges which is a little off putting but if you like citrus scents you will love it! Absorbs super quickly and seems to be working overall
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