Medik8 C-Tetra Luxe
Chosen to sit alongside a microneedling routine rather than replace it.
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Lipid 14% Vitamin C Enhanced Radiance Serum
Supercharge your skin's radiance each morning with C-Tetra Luxe; clinically proven to reduce the appearance of wrinkles and hyperpigmentation in just 4 weeks.* It also works to boost visible radiance while supporting the skin barrier. Featuring twice the amount of vitamin C (14%) of our original C-Tetra serum, C-Tetra Luxe is ideal for those looking for enhanced skin radiance and antioxidant protection alongside deep nourishment. The velvety-soft serum is formulated with a stabilised (and therefore very potent) form of vitamin C called tetrahexyldecyl ascorbate (pronounced 'tetra-hexul-deckul as-CORR-bate'), which delivers proven results after just 1 use*; all with a gentle, nourishing experience for your skin.
Key Benefits
- Instant Skin Youthfulness – Boosted with optimised red ginseng for proven skin-brightening and youth-boosting power.
- Total Skin Nourishment – Enhanced with squalane and vitamin F for deep moisturisation and clinically proven skin barrier support.
- Dark Spot Reduction – Delivers powerful, clinically proven action on the appearance of dark spots.
Proven Results
- 1 hour to visibly brighter, more youthful-looking skin*
- 7 days to improved skin radiance*
- 81% agree visible hyperpigmentation had reduced in just 4 weeks*
- 94% noticed smoother and softer skin after just 1 use*
- 86% reported it was the best vitamin C serum they had ever used*
*Proven via independent clinical study on C-Tetra Luxe conducted over 4 weeks on 36 participants.
How to Use
First-time use: If you're new to C-Tetra Luxe, we recommend a patch test at least 24 hours before first use.
- After cleansing in the morning, massage 6 drops of C-Tetra Luxe across the face, neck and décolletage.
- Leave to absorb before applying sunscreen. We recommend Advanced Day Ultimate Protect.
Key Ingredients
- 14% Stabilised Vitamin C (tetrahexyldecyl ascorbate) – A low-irritation form of vitamin C that delivers exceptional antioxidant protection against harmful free radical damage while supporting collagen production for a visibly even, more youthful-looking complexion.
- Squalane – An almost skin-identical lipid which helps to support the natural skin barrier by nourishing the complexion.
- Maracuja (pronounced 'marra-KU-ja') Oil – Naturally rich in nutrients and fatty acids, maracuja oil deeply nourishes your skin while providing additional antioxidant protection against free radical damage.
- Optimised Red Ginseng – Boosts the serum’s brightening powers while stimulating collagen production for more youthful-looking skin.
- Vitamin E – A powerful antioxidant that provides additional antioxidant protection against the ageing effects of free radicals. It also helps to boost the power of vitamin C for optimum visible results.
Full Ingredients
Squalane, Simmondsia Chinensis (Jojoba) Seed Oil, Tetrahexyldecyl Ascorbate, Dimethicone, Candida Bombicola/Glucose/Methyl Rapeseedate Ferment, Citrus Grandis (Grapefruit) Peel Oil, Ethyl Linoleate, Passiflora Edulis (Passion Fruit) Seed Oil, Tocopheryl Acetate, Helianthus Annuus (Sunflower) Seed Oil, Olea Europaea (Olive) Fruit Oil, Panax Ginseng Root Oil, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Prunus Armeniaca (Apricot) Kernel Oil, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.
Measured, not promised.
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The questions we actually get
Dr. Pen — as featured in
InStyle, Women’s Health, Cosmopolitan, Vogue.Before you buy
Using this with microneedling
Microneedling opens channels for a few hours. What you apply afterwards, and when, changes the result.













