This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

Enjoy Up To 25% Off Today (no code needed) | Free Shipping Over £60 | Extra 5% Off £100+ Spend With Code HAPPY5

Shopping Cart

Your cart is empty

Continue Shopping

Medik8 C-Tetra- 30ml

£33.15 £39.00

Lipid Vitamin C Radiance Serum

Restore radiance and fight visible signs of ageing with C-Tetra. Utilising the antioxidant power of vitamin C and E, the hydrating serums brighten and smooth the complexion, while fighting free radicals to reduce visible signs of ageing.

KEY BENEFITS
Stimulates the production of collagen and elastin to help reduce fine lines and wrinkles, as well as visibly brightening the complexion and balancing skin tone.
RESULTS
Skin is left soft, glowing complexion and youthful-looking
KEY INGREDIENTS
Tetrahexyldecyl Ascorbate & Vitamin E

Formulated with nourishing, pampering oils combined with the anti-ageing power of vitamin C, this fast-absorbing vitamin C serum is ideal for those looking for skin rejuvenation. Perfect for those who are new to vitamin C, or are looking to upgrade from C-Tetra Cream or Daily Radiance Vitamin C.

Carefully crafted in a water-free formula to be 100% stable, the vitamin C does not degrade over time. This ensures that your formula remains highly potent from the very first use to the final drop.

HOW IT WORKS

Your skin is packed full of natural antioxidants that defend against free radicals from the environment. When these environmental free radicals outweigh your skin’s antioxidants, the skin can no longer protect itself. Free radicals latch onto the defenceless skin cells, causing irreparable damage, which ultimately leads to premature ageing.

C-Tetra contains Tetrahexyldecyl ascorbate, a super-stable form of vitamin C that boosts the antioxidant defence levels in the skin. Ever the multi-tasker, it also stimulates collagen production to reduce the appearance of fine lines and wrinkles, leaving the complexion plump, radiant and youthful looking.

Vitamin C and vitamin E work together synergistically as 'network antioxidants', boosting the serum’s overall antioxidant effect to keep skin protected throughout the day.

Usually Dispatched Within 48 Hours

97% of orders are currently being dispatched within 48 hours (Monday to Friday). We are currently operating a very quick delivery service with Royal Mail. All parcels are tracked with Royal Mail and their current delivery timeframe is 24 to 48 hours. Please Note: Some deliveries may be split and sent from multiple warehouses, depending on current stock locations. Please allow 48 hours processing time, in addition to the delivery transit time selected at checkout.

Enjoy Up To 25% Off Your Entire Order + An Extra 5% Off

Let's take all the drama out of discount searches. Enjoy up to 25% off your order, which has automatically been applied to our online prices. Plus, take advantage of our exclusive extra 5% off today with code EXTRA5

A Family Business With A Big Vision

When shopping with us, we can guarantee that you'll receive the personal service that's synonymous with purchasing from a smaller family-run business. With over 3,000 5-Star Reviews on Trustpilot, we promise to give you the attentive service you desire, which is sometimes lacking with larger retailers.

Just A Little Reminder To Our Customers

Please be aware that many of our products come in multiple sizes. We have put the most common size selected in every product title along with the accompanying image. Please be sure to double-check the size in which you have selected and wish to pay for prior to checking out.

We're Always Happy To Help

Our staff turnover rate is extremely low and the average member of our team has been with our business for over seven years. If you've got a question about a product or need advice, please lean on our expertise and we'd be more than happy to help. Our goal is to reach 5,000 5-Star Trustpilot reviews by the end of the year.

Safe Shopping With No Stress

Our entire online store is operated by Shopify and every stage of your shopping experience is safe, secure and discreet. Use our variety of popular payment methods to shop safely in seconds and take all the stress out of shopping online. Our checkout is securely encrypted via a valid security certificate and SSL encryption.

Medik8 C-Tetra- 30ml

£33.15 £39.00

Customer Reviews

Based on 11 reviews
100%
(11)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
H
Helen
A definite buy again

This was the first Medik8 product I have tried and I really like it. It goes on really well, absorbs nicely and just feels lovely on the skin. I can't say if it's made a difference to my skin as it's one of a number of products I have started to use in an attempt to step up my skincare routine now that I am over 50 and showing signs of ageing. However, as vitamin C is one of the steps recommended then this fits the bill very well indeed. I have just ordered my second bottle as my first is getting low. I rarely stick with one product, but at the moment this is definitely one I wish to continue with. This site has had the best price I can find for what to me is a premium product and therefore a bit pricey.

C
Carla Keane
Amazing

It's the only vitamin C oil I've used that doesn't make my skin flare up. It goes on really well and absorbs perfectly.

B
Beatrix W
Love this product!

Leaves my skin soft, supple and a lovely a glow.
I love that you can buy a travel size to see if your skin agrees with the product.

G
G.O
very good

Very good communication. there was an issue with my order due to supplier shortage. they proactively contacted me and kept me updated on the situation. The products themselves are fab - i really like the tetra c; its unlike other vit c i have tried which tend to be sticky

J
Johnathon
Youthful looked skin

I’m in my mid 40s and wanted to buy something that would hopefully make me look a little younger as the wrinkles have now started to appear. I do feel like this has given my skin that youthful look to it.