Medik8 C-Tetra Serum 30ml
You'll earn 43 Status Points with this product
RRP: 54.00€ Current price: 43.20€
Save 10,80 € ( 20% Off )
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
RRP: 54.00€ Current price: 43.20€
Save 10,80 € ( 20% Off )
Other Customers Bought
Customer Reviews
5 stars rating 107 reviews
4 stars rating 18 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.
feels nice
not sure if this is doing anything, but it definitely feels nice.
by Alexis
Was this helpful?
Good vitamin C
It doesn’t stink with fish as drunk elephant serum. I love it and use it every morning!
by Natalia
Was this helpful?
MEDIK8 you did it again
This serum is one of the best vit C one. You will see the effect on uneven skintone, dull skin and bright effect. A staple
by Sabrina
Was this helpful?
Great skin brightener
This is the 3rd time of purchasing this product and I hadn't used Vitamin C for quite some years. Just a few drops every morning, allow to sink in before applying Moisturiser, and you're good to go for the day. It smells slightly citrusy which is also nice. Recommended by a professional and I haven't looked back. I even receive 'glowy' comments on my skin and I'm over 60.
by Jan
Was this helpful?
Lovely Serum
I love that after using this serum my skin immediately has a healthy glow, and feels / looks bright and refreshed.It has an almost velvety feel when applying but absorbs perfectly.I have sensitive skin, and did experience a bit of redness and mild stinging with the first few applications of this product, but now my skin is used to it, I find it soothing to apply.
by Kayls
Was this helpful?
Glides on easy
It's a brilliant serum and hydrates/plumps skin. Works well layering with other skincare product. I have combo skin and it's great. Only product I think is better is YTTP one but this is cheaper!
by Poorvs
Was this helpful?
Love, love, love!
I love it! The smell, the way it glides onto my skin, the immediate brightening effect. It gives me a real sense of well being. My skin feels silky smooth and refreshed after using this. Thank you Medik8!Â
by Angie B
Was this helpful?
Absolutely love this
I received a small bottle of this in the advent calendar and had to purchase again as soon as I ran out - this has been amazing for my skin in tackling London air. It leaves my skin glowy and hydrated and has become a must have item for me
by Natasha
Was this helpful?
Best vitamin c ever
Trust me it’s the best vitamin c. I buy on repeat and now my boyfriend does too!
by Georgie
Was this helpful?
Best Vit C
Love this serum. Really gives me a glow. Good value for moneyÂ
by Zoey
Was this helpful?