SKU: 22189737934

Medik8 C-Tetra® Advanced

Sale price$62.10 Regular price$69.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

Medik8 C-Tetra® AdvancedDescription Defend against premature skin ageing and achieve accelerated visible skin brightening. With a next generation combination of 20% vitamin C and cutting edge phyto exosomes that help shield and improve the skin's recovery from exposure to environmental stressors which can cause premature ageing. Clinically proven to brighten skin and visibly improve wrinkles in 7 days[1] with 0% barrier disruption[1], C Tetra Advanced is engineered for high

Description

Defend against premature skin ageing and achieve accelerated visible skin brightening. 

With a next-generation combination of 20% vitamin C and cutting edge phyto exosomes that help shield and improve the skin's recovery from exposure to environmental stressors which can cause premature ageing.

Clinically proven to brighten skin and visibly improve wrinkles in 7 days[1] with 0% barrier disruption[1], C-Tetra Advanced is engineered for high-performance visible brightening, skin smoothing, and daily antioxidant defence. 

This intelligent ingredient complex combines potent, stabilised 20% vitamin C with restorative phyto exosomes and omni-antioxidant acetyl zingerone to neutralise the ageing effects of free radicals. 

The result? A high-performance, age-defying vitamin C serum that works smarter, not harsher.

Benefits
  • Dramatic Skin Brightening - Clinically proven to visibly brighten skin and even tone in 7 days for a radiant, luminous complexion.
  • Premature Skin Ageing Defence - Shields skin from damaging free radicals, pollution, and daily environmental stressors to help defend against premature skin ageing.
  • Skin Barrier Support & Enhanced Resilience -  Powerful phyto exosomes work to reinforce the skin’s natural defence system, deliver replenishing bioactives to skin cells rapidly & effectively, ensuring 0% barrier disruption.
  • Smooth & Even Complexion - Clinically proven to visibly improve skin smoothness and texture in 7 days, leaving a soft, polished finish.
  • Lightweight Finish - The fast-absorbing gel-serum texture hydrates, smooths, and primes, leaving skin instantly refreshed and ready for the day ahead. 
How To Use

Apply as part of your morning skincare routine. Massage 2-3 pumps across the face, neck and décolletage. Follow with moisturiser and always finish with sunscreen. 

Full Ingredients
20% Vitamin C Gel-Serum With Phyto Exosomes

Aqua (Water), Tetrahexyldecyl Ascorbate, Isododecane, Propanediol, Acetyl Glucosamine, Squalane, Tocopherol, Acetyl Zingerone, Camellia Sinensis (Green Tea) Leaf Vesicles, Hydroxyacetophenone, Sodium Hyaluronate, Cellulose, Avena Sativa (Oat) Kernel Extract, Glycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Sucrose Stearate, Tetrasodium Glutamate Diacetate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Sodium Benzoate, Cellulose Gum, 1,2-Hexanediol, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Phenoxyethanol, Citral, Linalool, Limonene

*Although we try our best to ensure this list of ingredients is accurate there may be product upgrades from time to time, or slight variants between different regions based on local laws, meaning the only definitive ingredient list is that which is printed on the product packaging.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22189737934

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4.9 ★★★★★
Based on 22 reviews
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michele p.
Chelsea, US
★★★★★ 5
Great product to keep moisture in
Size: M (up to size 9)-Beige
These are so cool. I was skeptical at first. After an at home pedicure I put lotion on and keep these on for about a few hours. The moisture retention, and comfort and fit or absolutely amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2025
A
Verified Purchase
Amy
Pawtucket, US
★★★★★ 5
These work!
Size: M (up to size 9)-Beige
I’ve had dry cracked feet my whole life. Tried these last night with lotion from Trader Joe’s and literally overnight my feet are the softest they’ve ever been. I put a pair of socks over them and went to sleep with them on. Hard to walk around with all that slippery-ness but worth it! 10/10✨👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2025
V
Verified Purchase
View from the hills
Charlottesville, US
★★★★★ 5
Enables the person to move around while wearing.
These silicon socks look a bit odd at first glance but they work great and best of all, any lotions and oily creams are contained on the inside so you can walk around. They are very soft. I haven't had them long so I can't comment on durability, but they are not made of lightweight material.
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Reviewed in the United States on March 10, 2026
T
Verified Purchase
Theresa C.
Belleville, US
★★★★★ 5
They Work
Husband struggles with cracking feet, he has tried so many home remedies these work great to keep the moisturizer on and the carpet dry!
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Reviewed in the United States on March 25, 2026
R
Verified Purchase
raymond jones
Carnegie, US
★★★★★ 1
Not worth the time or money
Never buy these, they causes feet cramps and bad pain even if you use foot pain cream
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Reviewed in the United States on April 30, 2026

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