Medik8 C-Tetra Serum 30ml
You'll earn 54 Status Points with this product
54.00€
In stock | Usually dispatched within 24 hours

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.
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.
After cleansing in the morning, massage four drops across the face, neck and décolletage. Leave to absorb before applying sunscreen.
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

This item
Medik8 C-Tetra Serum 30ml
54.00€
Other Customers Bought
Customer Reviews
5 stars rating 95 reviews
4 stars rating 16 reviews
3 stars rating 8 reviews
2 stars rating 4 reviews
1 stars rating 0 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.
best Vit C
i keep purchasing this Vit C it performs so well and it doesnt leave a greasy face after use
by annalie Verified Purchase
Was this helpful?
best Vit C so far
this is a product that i keep repurchasing because of its efficiency and performance . 10/10
by annalie Verified Purchase
Was this helpful?
Immediate results
I got a small sample of this back in 2022 and I remember loving it but saying I will try something else before I come back to it. I forgot about it and recently my skin was breaking out and looked so dull and not luminous at all that I decided to go back to the routine I had back in 2022 when my skin never looked better and honestly I saw results within a week of using this. I love it - my skin which is combination with dehydrated patches and super sensitive and prone to allergies loves this!
by I’ll Verified Purchase
Was this helpful?
Good serum
The serum is good working for my dry skin. It is a bit oily but absorbs quickly. Smells like lemon.
by Nataliia K Verified Purchase
Was this helpful?
Good
It is my first cream from Medik8 and that pricy cream as well. the cream is well absorbed and moisturises the skin. Skin is soft and hydrated in the morning. However, it has the cream has a strong fragrance. For me, this is not a problem in make-up and care products, but for a night cream, it is a significant disadvantage. I smell it for a long time until I fall asleep
by Nataliia K Verified Purchase
Was this helpful?
One of the best
One of the best serum I've ever tried. It leaves my skin so bright and soft. I've tried diferent products of this brand and i am loving them
by Leire Verified Purchase
Was this helpful?
Favourite Vit C
Makes my skin a lot brighter with less texture
by Alex Verified Purchase
Was this helpful?
Love it!
I've been using this Vit C serum for over 5 years. Once you try it you will never go back, the texture is incredible!! It gives the skin an incredibly smooth finish and I feel my skin brighter and fine lines are under control.
by Marta P Verified Purchase
Was this helpful?
Can‘t live without it
I‘m in love with this product. My skin is so bright and looks so glowy since using this product. It fades acne marks so well 10/10 recommend
by Nadia Verified Purchase
Was this helpful?
Best vit C serum out there
I’ve tried many and many of them were really good but this one is game changing. After few weeks you can really see the difference in how your skin looks. Brighter, even skin tone, plumper. The oil texture is perfect. Definitely repurchase.
by Dominika Verified Purchase
Was this helpful?