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C-Tetra®

Medik8

C-Tetra®

€56,95

Lipid Vitamin C Antioxidant Serum - 30ml

Restore your skin's radiance in just 7 days* with your favorite C-Tetra serum.

This lightweight serum is formulated with a stabilized form of vitamin C (7%) called tetrahexyldecyl ascorbate. It visibly brightens uneven skin tone and reduces the appearance of fine lines and wrinkles, while remaining gentle on sensitive skin.

Fortified with vitamin E, this antioxidant also protects the skin from the aging and damaging effects of free radicals for a younger, healthier-looking complexion. It's the perfect choice for those new to vitamin C or those with sensitive skin.

*Proven through an independent consumer study conducted over 4 weeks with 52 participants with sensitive skin.

Free from synthetic colours  Free from artificial fragrances
 Paraben-free  Phosphate-free
 Free from palm oil  Alcohol-free
 Animal friendly  Vegan
Ingredients

Tetrahexyldecyl Ascorbate
A fat-soluble form of vitamin C that provides exceptional antioxidant protection against damaging free radicals while stimulating collagen production for youthful-looking skin.

Vitamin E
A fat-soluble antioxidant naturally present in the skin, vitamin E protects the skin from free radicals and is regenerated by vitamin C for optimal strength.

Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.

*While we make every effort to ensure this ingredient list is accurate, there may be occasional product upgrades or slight variations between regions based on local laws, meaning the only definitive ingredient list is the one found on the product packaging.

Instructions for use

  1. In the morning after cleansing, massage 4 drops into the face, neck and décolleté.
  2. Allow to absorb before applying sunscreen. We recommend Advanced Day Total Protect.
Frequently Asked Questions
How does it work?

Your skin contains natural antioxidants that defend against environmental free radicals. When these environmental free radicals outweigh your skin's antioxidants, the skin can no longer protect itself. Free radicals attach themselves to defenseless skin cells and cause irreversible damage, ultimately leading to premature aging.

C-Tetra works to protect skin from free radical damage, using vitamin C to boost the skin's natural antioxidant defenses. Vitamin C is a key pillar of our CSA philosophy, as it's one of the most powerful vitamins for preventing the signs of premature aging. Vitamin C also helps stimulate collagen production and can disrupt melanin overproduction to lighten dark spots and uneven skin tone. The result? Visibly radiant, healthier, more youthful-looking skin. C-Tetra contains tetrahexyldecyl ascorbate, a form of vitamin C that is a stabilized modification of ascorbic acid (the purest form of vitamin C) that is gentle on the skin and proven to deliver visible results.

Vitamin C and Vitamin E work synergistically as 'network antioxidants', enhancing the serum's overall antioxidant effect to keep skin protected all day long.

C-Tetra is based on jojoba seed oil for lightweight nourishment and a radiant appearance. This natural emollient oil glides effortlessly into the skin barrier and easily delivers the benefits of vitamin C.

When combined, vitamin C and sunscreen provide skin with ultimate protection from the sun and the environment all day long, minimizing signs of premature aging. Shop our recommended SPF day cream, Advanced Day Total Protect.

Precautionary measures

Avoid contact with eyes. If product gets into eyes, rinse thoroughly with water. Discontinue use if irritation occurs. If irritation persists, consult a doctor. Use only as directed and on undamaged skin. Patch testing before use is recommended. Visit medik8.co/patch for detailed patch testing instructions. Keep out of reach of children.

The science behind it

It's extremely difficult to formulate a long-lasting vitamin C serum that maintains its potency over time. It's notoriously unstable, prone to oxidation, and can often turn yellow, indicating reduced effectiveness. Medik8's C-Tetra range uses an extremely stable form of vitamin C called tetrahexyldecyl ascorbate. This molecule has been modified to make it less reactive to oxidation, meaning that even after six months, you can be confident that your vitamin C is still as potent as when you first opened it.

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At House of Beauty, we focus on exclusive, skin-rejuvenating and skin-improving treatments. As a skin expert, my goal is to offer every client a unique experience, tailored to their individual needs and desires. This is made possible by using advanced technologies, high-quality products, and medically proven treatments, combined with expert knowledge.

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