Medik8 C-Tetra Serum 30ml
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£39.00
Or 4 interest free payments of £9.75 with clearpay
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.
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Medik8 C-Tetra Serum 30ml
£39.00
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4 stars rating 78 reviews
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Top Customer Reviews
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Repurchase
I’m re buying as I am really happy with this as a Vitamin c serum. Was in a spin as to which one to go with but I’m learning to trust Medik-8 as a brand and will try more. Has a subtle glow and goes on well. Nice scent, not too overpowering.
by 30’s skin Verified Purchase
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Bright, Fresh, and Radiant Skin!
I’ve been using the Medik8 C-Tetra Serum 30ml and the results are incredible! The lightweight formula absorbs quickly and leaves my skin feeling hydrated and glowing. Over time, I’ve noticed a visible improvement in my skin tone and texture—it’s brighter and more even. A perfect addition to any skincare routine!
by Marek Verified Purchase
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Bright, Fresh, and Radiant Skin!
I’ve been using the Medik8 C-Tetra Serum 30ml and the results are incredible! The lightweight formula absorbs quickly and leaves my skin feeling hydrated and glowing. Over time, I’ve noticed a visible improvement in my skin tone and texture—it’s brighter and more even. A perfect addition to any skincare routine!
by Marek Verified Purchase
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Lovely
My skin loves this, and others have said, it goes great with makeup, application is a lot smoother after using.
by LG
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A staple!
At least the third time rebuying. The Tetra ascorbic does not irritate my very sensitive skin when every other formulation I have ever used has. A backbone of a routine for me that has really sorted my sensitive oily/combo skin. I used every morning
by Agnes Verified Purchase
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So gentle
Never had any irritation with this, love that it’s oil based and therefore gives a lovely glow. Really helped my hyper pigmentation from pregnancy.
by Caitlin Verified Purchase
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Nice serum
Really like this serum, my skin drinks it up and it sits well under make up - wouldn’t recommend if you are very oily though. Taken one star off as I’m undecided it’s worth the price.
by Dristi Verified Purchase
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Medik8
Absolute staple in my daily routine. Brightens and softens skin.
by Anjali Verified Purchase
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Use daily
I use this daily and then SPF. My skin is glowy and looks healthy! Would recommend.
by LauraW Verified Purchase
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Repurchase
I think this is my fourth bottle. I love it, you only need a small amount really hydrating and helps pigmentation from any spots I’ve had.
by B Verified Purchase
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