$78.20 (30ml)


How to Buy

C-Tetra®
Professional Strength Pro-Collagen Vitamin C Serum



 

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).





     
    • Helps to protect skin against oxidative stress the main cause of photo-ageing
    • Complements sunscreen creams. Once applied, C-Tetra® absorbs immediately and cannot be washed off
    • Adds a luminous glow to the skin, evens out skin tone and leaves it supple, bright and well hydrated
    • Helps stimulate collagen and elastin synthesis for tighter skin and less lines and wrinkles
    • Helps increasing physical resistance to capillary damage and thereby has a benefit to redness-prone skin
    • Helps improve the lipid barrier of the skin.
    • Formula is non-blemish aggravating and non-comedogenic (does not clog the pores)
    Tetra substituted Lipophilic Ascorbates are the holy grail of vitamin C derivatives and tetrahexyldecyl ascorbate (C-Tetra) is the leader in the class. Medik8 offer tetrahexyldecyl ascorbate in a very simple vehicle to ensure the absence of interference from other ingredients that would be present in a regular emulsion cream or gel. Contrary to the misguided assumptions of even some expert skincare formulators, adding more antioxidant types or just loading concentration of one antioxidant in a formula can actually reduce the antioxidant effect of the product. Medik8 antioxidants have been tested throughout development and Medik8 have patents pending on innovations following this pioneering antioxidant research.
    C-Tetra activity has been strengthened by the addition of a natural form of vitamin E (d-alpha isomer). Natural vitamin E and vitamin C work together synergistically in order to stabilise and 'recharge' each other. They prevent each from oxidising when they are co-applied to the skin.
    For full background science on C-Tetra, please refer to the Medik8 Science section of this website



C-Tetra has been formulated for direct application to the face.

In the morning, after cleansing, apply 3-4 drops directly to the skin and blend evenly across the whole facial area, neck and décolleté. Alternatively, place a drop on your finger and massage into the skin. Leave to absorb for 2-3 minutes.

Follow with the application of your preferred SPF hydrator/sunscreen.

To view the application areas and protocol click below:


View the Medik8 Skin Zones






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Medik8 is a pioneering skin research company working in the field of sensitive skin green cosmeceuticals. Results without the irritation! It is a myth that a product designed for sensitive skin would be less effective just because it is less irritating. In fact, latest independent research finds the opposite. Most skin is sensitive, it is just to what degree that distinguishes it from others. A simple change of washing powder can demonstrate this. People of all ages and skin types can periodically suffer from sensitive skin, making them particularly susceptible to certain irritating cosmeceutical ingredients. In fact, those suffering from acne, rosacea or psoriasis usually have greater skin sensitivity. Medik8 also recognise that people with sensitive skin and redness can also have oily, dry or combinations skin which is why our range for sensitive skin encompasses all skin types rather than offering one sensitive option. The challenge for Medik8 is to make effective professional skincare formulae less aggressive without reducing potency. We do this in many ways, for example using film-encapsulation, chirally correct actives, non-acid derivatives and patented anti-erythema technologies.
Choose your Medik8 Dermaroller here