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C-Tetra Liquid Vitamin C Antioxidant Serum by Medik8

1.02fl. oz | SKU# UK200028306

In Stock

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Please note we are unable to ship Medik8 products to Europe at this time.

Medik8's cult-favourite vitamin C serum featuring tetrahexyldecyl ascorbate, a gentle form of vitamin C. Perfect for those who are new to using vitamin C in their skincare routine.

Tetrahexyldecyl ascorbate is an oil soluble, 100% stable form of vitamin C which remains freshly potent from the very first use to final drop. A powerful antioxidant, it's protective qualities are reinforced with vitamin E. Combined, these actives help to tackle sun and pollution-induced damage.

C-Tetra minimises the appearance of all signs of skin ageing. The jojoba-based, lightweight formula with an uplifting citrus scent, absorbs rapidly to leave skin looking illuminated, refreshed and youthful.

Medik8 recommend a simple, highly effective anti-ageing strategy of using vitamin C and sunscreen in the morning and vitamin A at night. This strategy is called: CSA.

Key Benefits:
  • Contains tetrahexyldecyl ascorbate, a stable and gentle yet effective form of vitamin C
  • Enhances skin radiance
  • Antioxidant protection
  • Minimises the appearance of fine lines and wrinkles
  • Combats sun and pollution damage
How to Apply
After cleansing skin in the morning, apply 4 drops across the face, neck and décolletage. Leave to absorb before applying your moisturiser.

Free on all orders over $50
Receive your order in 7-11 working days*(Please be aware that during sale and promotional periods your order may take longer to arrive).

Receive your order in 1-2 working days* (Please be aware that during sale and promotional periods your order may take longer to arrive).

If you'd like to send your order as a gift, we can add a beautiful finishing touch with our limited edition Christmas gift wrap. Choose complimentary gift wrap at checkout.

At this time we are unable to ship to P.O Boxes, A.P.O or F.P.O

About Medik8
Achieve healthy, beautiful skin with Medik8. Now available at Space NK, its science-backed formulas are 100% vegan and cruelty-free.
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What other customers think
C-Tetra Liquid Vitamin C Antioxidant Serum is rated 4.7 out of 5 by 32.
Rated 4 out of 5 by from I recommend, but there may be an individual reaction. Eh, not mine! I bought it in the hope of replacing retinol with bakuchiol in the summer, but bakuchiol caused a severe allergy. I want to warn anyone with allergy surprises before using it for an allergy test. The situation is similar with another firm's Bakuchiol. The bottle was presented to a girl who is very happy, it is too early to talk about the results, but she behaves very well on her combination skin, without negativity and allergies, does not clog pores and does not provoke inflammation. She happily discovered this wonderful product. ... Yes, despite the allergies, I recommend this product because my friend is still very satisfied.
Date published: 2021-01-24
Rated 5 out of 5 by from Best vitamin C serum! I have dry and sensitive skin, and I have tried a lot of vitamin C serums, and they all were so irritating. The C-Tetra serum is so smooth and works so great! I have noticed that it work really well with hyperpigmentation and post acne! Also my skin doesn’t look dull when I use this serum! Don’t forget to wear a sunscreen during the day!
Date published: 2021-01-23
Rated 5 out of 5 by from A little goes a looooong way! I love this, it smells great and leaves my skin glowing! I’ve had it since august, using 0.2ml each morning and I’ve only just run out! It’s a great price and a little really does go a long way as it’s lasted me 5 months! I will definitely be repurchasing!
Date published: 2021-01-20
Rated 5 out of 5 by from Perfectly gently vitamin c I decided to take the plunge with this serum a few weeks ago, having previously been put off by vitamin c products seeming to break out my sensitive skin. At this price point it was worth a try. I’m so pleased with the results and it absolutely has not made my skin in any way, other than giving it a lovely smooth glow. I shall definitely be continuing with this.
Date published: 2021-01-16
Rated 5 out of 5 by from Love this serum! It smells divine, feels divine, sits well under makeup and makes my skin feel amazing. I have only been using this for a month but can really see and feel the difference in my skin. It has helped brighten and improve the texture of my skin. Well worth purchasing!
Date published: 2021-01-16
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