Lipid Vitamin C Radiance Serum
Refunds & Returns
Purchase direct from Medik8 with confidence, and definitely no hassle.
If you are unhappy with your purchase for any reason, we simply ask that you return any product to us at least half-full within 30 days after purchase. We ask that you follow the instructions on the product returns page, which may change from time-to-time but will always involve a reasonable requirement to obtain authorization from us for making a return. Please check the returns page before placing an order with us to ensure that you are satisfied with our return policy. Please remember, when returning any kit item (including any custom CSA kits), you must return the entire set. You will then receive a full product refund (to the same payment method used for purchase) or product exchange depending on your preference. After we, or our service provider, receive back your return, we will promptly issue you with a refund in accordance with the details on the returns page at the time you place your order (“Promotional Return Policy”).
We reserve the right to amend or cancel this Promotional Return Policy at any time at our sole discretion.
For the full Terms of Service and more information about our Standard Returns Policy, please see the Terms of Service page.
A daily serum which features a low irritation, stabilized form of vitamin C, tetrahexyldecyl ascorbate. Suitable for all skin types, even the most sensitive, C-Tetra is perfect for those looking to introduce vitamin C into their regime.
- KEY BENEFITS
- The jojoba infused, ultra-lightweight serum sinks in rapidly to leave the complexion visibly brighter.
- Skin is left visibly glowing, nourished and refreshed.
- KEY INGREDIENTS
- Tetrahexyldecyl Ascorbate & Vitamin E
C-Tetra helps to reduce the appearance of skin aging signs and promotes a brighter-looking complexion.
Tetrahexyldecyl ascorbate is an oil-soluble, stabilized version of vitamin C which maintains its power throughout its life. For maximum results, the vitamin C is paired with co-antioxidant vitamin E.
Vitamin C Entry Point
Suitable for all skin types, especially those with sensitive skin, C-Tetra is ideal for those new to vitamin C.
Looking for more power?
C-Tetra Luxe has double the concentration of vitamin C as C-Tetra, and with additional brightening and nourishing ingredients.
How It Works
C-Tetra helps to support a visibly illuminated complexion while reducing the visible signs of skin aging.
The lightweight serum is formulated with tetrahexyldecyl ascorbate, a stabilized form of vitamin C and an antioxidant. Tetrahexyldecyl ascorbate helps to reduce the appearance of fine lines and wrinkles, while visibly brightening skin tone.
C-Tetra combines vitamin C with vitamin E, to nourish the complexion, instantly boost the appearance of skin radiance and to leave the skin soft-to-touch.
How To Use
After cleansing in the morning, massage 6 drops across the face, neck and décolletage.
Leave to absorb before applying moisturiser.
Patch testing prior to use is advised. Refer to medik8.co/patch for an in-depth guide to patch testing.
Interested in routines & layering?
C-Tetra features in many of our carefully curated regime guides, including our Beautiful Skin Everyday regime. Click the link for additional product recommendations and easy-to-follow layering advice.
A stabilized, gentler form of the antioxidant vitamin C that works to keep the appearance of fine lines and wrinkles at bay, visibly even the skin tone.
A lipid-soluble antioxidant, Vitamin E is naturally present in the skin and works to nourish the complexion.Full Ingredients
- NO ARTIFICIAL FRAGRANCE
- PARABEN FREE
- VEGAN FRIENDLY
- ZIPPER DONATION
- NO SYNTHETIC COLOURS
- NO PHTHALATES
- ALCOHOL FREE
- CRUELTY FREE
The Science Behind
“It is exceptionally difficult to formulate a long-lasting vitamin C serum that will keep its power over time. Vitamin C is notoriously unstable, sensitive to oxidation and can often turn yellow in color, which indicates that it has gone off. Medik8’s C-Tetra range utilizes a stabilized 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
Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.*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.