SKU: 7764464959

Medik8 - C-Tetra Lipid Vitamin C Radiance Serum 30ml

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Description

Medik8 - C-Tetra Lipid Vitamin C Radiance Serum 30mlDESCRIPTION A proven low irritation formula, 96% of sensitive skins found C Tetra to be gentle on their skin.* KEY BENEFITS Daily Glow The silky jojoba oil infused serum works to effortlessly give skin a boost of radiance, promoting a visible healthy looking glow in as little as 7 days.* Antioxidant Power Vitamin C and E provide daily protection from harmful free radicals generated by sun exposure, which can cause visible signs of premature ageing.

DESCRIPTION

A proven low-irritation formula, 96% of sensitive skins found C-Tetra to be gentle on their skin.*

KEY BENEFITS

Daily Glow

The silky jojoba oil-infused serum works to effortlessly give skin a boost of radiance, promoting a visible healthy-looking glow in as little as 7 days.*

Antioxidant Power

Vitamin C and E provide daily protection from harmful free radicals generated by sun exposure, which can cause visible signs of premature ageing.

Gentle yet Effective

Tetrahexyldecyl ascorbate is a stabilised, gentle form of vitamin C which makes it perfect for those new to vitamin C, or sensitive skins that don’t want to compromise on results.

Looking for more power? Check out C-Tetra Luxe, with double the concentration of vitamin C as C-Tetra and additional brightening and nourishing ingredients for supercharged results.

HOW IT WORKS

Your skin contains natural antioxidants that work to 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 signs of premature skin ageing.

C-Tetra works to protect the skin from free radical damage, featuring vitamin C to boost the natural antioxidant defence levels in the skin. Vitamin C is a key pillar of our CSA Philosophy, due to being one of the most powerful vitamins for preventing the visible signs of premature skin ageing. Vitamin C helps to brighten the appearance of dark spots and uneven skin tone. The result? Visibly radiant, more youthful-looking skin. C-Tetra contains tetrahexyldecyl ascorbate, a form of vitamin C which is a stabilised modification of ascorbic acid (the purest form of vitamin C) that is gentle on the skin yet proven to deliver visible results.

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.

C-Tetra is based on jojoba seed oil, for lightweight nourishment and an instant glowing appearance. The natural emollient oil slips effortlessly into the skin barrier, delivering the vitamin C benefits with ease.

Perfect Pair

When combined, vitamin C and sun protection give skin the ultimate protection against the sun and environment throughout the day, to minimise visible signs of premature ageing.

THE SCIENCE BEHIND

“It is exceptionally difficult to formulate a long-lasting vitamin C serum that will keep its power over time. It is notoriously unstable, sensitive to oxidation and can often turn yellow in colour, which indicates that it has gone off. Medik8’s C-Tetra range utilises an extremely stable form of vitamin C, called tetrahexyldecyl ascorbate. This molecule is altered to make it less reactive to oxidation, meaning that even 6 months down the line you can be sure your vitamin C is still as potent as when you first opened it.”

Daniel Isaacs, Medik8 Director of Research

HOW TO USE

After cleansing in the morning, massage 4 drops of C-Tetra Luxe across the face, neck and décolletage.

Leave to absorb before applying sunscreen. We recommend Advanced Day Ultimate Protect.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 7764464959

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4.6 ★★★★★
Based on 7 reviews
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Product Reviews
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Verified Purchase
TRP
Chelsea, US
★★★★★ 5
My dog loves this
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
Easy to insert bottles into and easy to toss. My dog loves that it both squeaks and crunches. One of his new favorite toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
L
Verified Purchase
Lisa Jones
Dallas, US
★★★★★ 3
Not durable for a large breed
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG, Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
I received this toy about 2hrs ago. My dog tore a hole in it already. Not made for Rottweiler/American Bulldog breed, apparently. 🙂 Love that there isn't stuffing though, at least she's not making a mess, lol!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2025
T
Verified Purchase
TLC_936
Chelsea, US
★★★★★ 5
My dog loves it.
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
I thought I was going to have to return this dog toy because my dog was afraid of the toy, especially the squeaker. But after a while, he finally did start playing with it and now he won’t let the other dogs touch his frog. It’s so bad that if they do touch it, he rips it out or their mouth, jumps up into a chair, and lays on top of it so they can’t get it. He still doesn’t like the squeaker if it’s down in front of him, but if I’m in another room, the squeaker makes him come running. He loves the squirrel I got him too. But the material of the frog seems really durable. The part I like the most of that it’s like a puppet and you can stick your hand in it or an empty bottle of water and then Velcro it shut. If your dog doesn’t like the squeaker, there is a pouch in the mouth of the frog that you can access through this velcroed area and cut it out. Definitely a must have if you have a tough chewer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2020
T
Verified Purchase
Tina
Omaha, US
★★★★★ 1
Don't waste your money!
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG, Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
Do NOT buy unless you like throwing away your money! This Ethical Pets 54093 Skinneeez Frog seemed like a great dog toy, but my Malti Poo destroyed it within TEN minutes! He actually ate the material and half of the squeaker before I found the other half. Guess we’ll be seeing that outside in a few days! This toy is listed as “Durable Dog Toy”, but it is NOT. I’ve got dog toys from the dollar store that lasted for months! We will not be buying nor recommending this product again. Don’t waste your money!
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Reviewed in the United States on March 12, 2024
T
Verified Purchase
Takia
San Leandro, US
★★★★★ 5
Perfect size for pittie pups
Color: GREEN, Size: 14 inch (Pack of 1), Style: FROG
This was a pretty good toy. I have three pitbulls. The puppy in my video is 65lbs for reference to the toy. I thought that since it was fluffless she wouldn't try to eat the thing but after a couple of days of tugging it with her brothers the toy's paw came off and I was not fast enough to prevent her from swallowing it. She got rid of it with little GI stress. I will say that even though she's not squeaking it in the video, it has a pretty loud squeak. Overall we had it for four days before 260lbs of pooches were able to get the squeaker out. If you have pits then you know this is 5-star worthy sturdiness.
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Reviewed in the United States on July 9, 2022

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