Medik8 C Tetra Serum Pro-Collagen Vitamin C Serum.
Medik8 C-Tetra® is a revolutionary ultra-stable vitamin C serum which helps combat sun-induced damage to the skin, trigger collagen synthesis, increase the skin’s elasticity and density as well as improve the skin’s texture and brighten the complexion. Designed for both men and women in their mid-20s to 40s.
Regular vitamin C is very unstable and many typical vitamin C products are inactive by the time they are used on the skin, in some cases, they have become pro-oxidant and actually generate free radicals! Ground-breaking stability data on C-Tetra guarantees real vitamin C activity and best of all, unlike L-ascorbic acid (regular vitamin C), C-Tetra will not exfoliate or irritate skin.
C-Tetra® contains 3% Tetrahexyldecyl Ascorbate, the most potent and highly stable derivative of vitamin C available.
C-Tetra has been shown to have upto 4 times the potency L-ascorbic acid and other derivatives such as MAP (magnesium ascorbyl phosphate).
I love this serum! It makes my skin feel amazing, doesn't leave it greasy and works well under my daily moisturiser. It lasts for quite a long time too! Been using it for 2 years now and wouldn't change.
Reviewed by Deborah Witting
Excellent product, after using it ypu could feel inmediately your skin much better and more radiant. I always buy this priduct because is the most stable chemical formula for the C vitamin that I have founded.
Reviewed by T N, Liverpool
The best dermatological product I've used, I've tried so many over the years and this is by far the best! I wouldn't get anything else i've definitely found the product to suit my skin!
Reviewed by Wendy Eade, Hampshire
I have been using c tetra serum for over a year now, and I won't use anything else.
Reviewed by Jag Sahota, Huddersfield
The best serum I have used to date.
Reviewed by Ciara, London
Superb product, provides deep hydration without leaving any shiny residue. Skin looks plumper and more awake after 1 week of use.
Reviewed by Karen Metcalfe, Sunderland
Soaks into the skin really well, without any oily residue. My skin always feel lovely after it's been applied, nice smell, and my skin is looking better for it.
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