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.
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Medik8 C-Tetra Serum 30ml
54.00€
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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.
Glowing skin
I received a sample bottle of this serum and was so impressed by the results that I have just purchased my first bottle. Using this serum feels like you’re really looking after your skin. The texture is not really oily but feels luxurious and hydrating. It takes several minutes to sink in but you can apply eye cream, or moisturise your body whilst waiting. The scent of this serum is a beautiful and uplifting citrus, which adds to the whole enjoyment of the ritual of applying this product. Ultimately though, this serum is really effective - my skin feels hydrated, smooth and glowy after using it. My skin has been prone to break outs in the past, but this serum does not trigger any of that. In fact my skin has never looked clearer or more healthy!Â
by I love cosmetics
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Beautiful
Such a Beautiful Vitamin C Serum. The texture and smell are amazing. It suited my skin straight away and glides under my moisturizer and makeup without flaking.  Gives me a glow and clarity to my skin  I Will repurchase for sure. I am very pleased with this great productÂ
by Lana
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Satisfied customer
This is my second purchase of this product. It is suitable for my sensitive skin and has increased brightness and reduced pigmentation. Also impressed with cult beauty service and price.
by Kate
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Ideal vitamin C serum
Oily texture which sinks right in, lovely citrus smell and my skin feels amazing and looks smooth and shiny. I got this serum as a sample in one of the goody bags and I bought the full size and most probably will repurchase.
by Markéta
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Won't repurchase
Not sure that this really did anything for me. I've since moved on to another brand and didn't finish this bottle. Â A nice product, but didn't feel that it was really working for me sadly.
by Lucy
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What is this sorcery?
The texture, the consistency, the smell, the finish...everything is just right. I've managed to balance my hormonal skin so it was time to bring back in a Vit C and boy am i glad it was t his one. Super lightweight, feels like an oil but absorbs like a serum. I've been using for around a month i've noticed a difference is he overall tone/balance of my skin. I have some gnarly post blemish marks on my cheeks and i'm definitely seeing a slight fade/improvement. I don't have particularly sensitive skin (combo queen) but appreciate when products don't tingle/cause any sensation yet just work. A little goes a long way and i can't wait to see the results as i continue to use.
by Jodi TD - Cult Beauty Staff
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My Favourite So Far...
I love the oil-like texture of this serum, it's lightweight and can be patted in easily after toner. A little goes a long way (the instructions recommend 6 drops) and it doesn't take long to absorb into the skin. My main pet-peeve with vitamin C is that some serums can leave a brown/ orangey stain on skin and clothing. I've found this constantly when using the Inkey List and Drunk Elephant Vitamin C serums, so I thought it was normal. Medik8's Vitamin C however does no such thing. There is no colour to it, which suggests to me that it's more fresh (tends to go orangey as it ages) and doesn't leave the collars on my clothing & bra straps with a grubby stain. I've been using for around a month now and am not even 1/4 of the way through the 30ml bottle. Looking forward to repurchasing!
by Charlotte
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Love this!
I love the smell and it’s make a difference to my complexion. I’m not usually a fan of oils but this isn’t too heavy and soaks in really quickly. I will definitely buy again - my skin is glowing!
by Tracy
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Best vitamin C serum
My skin is generally too sensitive for vitamin c, but this product didn’t sensitize or dry my skin out. I can't believe how much I noticed a difference in my skin in just a few days. I have noticed that my skin is brighter, glowing and clear. I cannot recommend this enough. The smell is amazing!
by Kate Verified Purchase
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Very Good
I am liking this serum so far and like the texture not sticky
by Virginia Verified Purchase
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