C-Tetra Luxe

Fine Lines & Wrinkles

C-Tetra Luxe

  • Brighten
  • |
  • Smooth
  • |
  • Nourish
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.

*Proven via independent clinical study on C-Tetra Luxe conducted over 4 weeks on 32 participants

Full Size (30ml)

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Bezpłatna standardowa dostawa przy każdym zamówieniu
15% off your first order
"No questions asked" easy 30 day returns
Biała tubka Advanced Day Ultimate Protect stoi pionowo, obok widoczna jest smuga jasnego kremu.
Advanced Day Ultimate Protect™
  • Protect
  • |
  • Repair
  • |
  • Hydrate
Age-Defying Moisturiser with Photolyase SPF 50+ | PA++++
Full Size (50ml)
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
BEFORE
AFTER 8 WEEKS
BEFORE
AFTER 8 WEEKS
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. Learn how to patch test here.

Step 1

After cleansing in the morning, massage 6 drops of C-Tetra Luxe across the face, neck and décolletage.

Step 2

Leave to absorb before applying sunscreen. We recommend Advanced Day Ultimate Protect.

Uses Per Tube

200

Guide to Layering
Step 1: Cleanse
Tubka Medik8 Surface Radiance Cleanse przedstawiona na czystym białym tle z dużą, półprzezroczystą smugą żelowej konsystencji. Tekst identyfikuje produkt jako resurfacingowy żel oczyszczający AHA/BHA z ekstraktem z mangostanu w rozmiarze 150 ml.
Morning
Evening
Surface Radiance Cleanse™
Full Size (150ml)
Step 2: Target
Butelka serum Medik8 Liquid Peptides Advanced MP z nagrodami na białym tle
Morning
Evening
Liquid Peptides Advanced MP
Full Size (30ml)
Step 3: Brighten
Otwarta butelka serum Medik8 C-Tetra Luxe z szklaną pipetą opartą o rant, przedstawiona na białym tle z widocznymi, przezroczystymi kroplami serum. W lewym górnym rogu znajduje się oznaczenie „Get The Gloss Beauty Awards Gold 2024”, a w prawym górnym rogu emblemat „Dermatologist Recommended” z ikoną lupy.
Morning
C-Tetra Luxe
Full Size (30ml)
Step 4: Renew
Na zdjęciu widoczna jest srebrna tubka preparatu Crystal Retinal 1, a po jej prawej stronie próbka różowego kremu. Widoczne są również oznaczenia „WORLD FIRST PATENTED TECHNOLOGY” (ŚWIATOWA PREMIERA – OPATENTOWANA TECHNOLOGIA) oraz „DERMATOLOGIST RECOMMENDED” (ZALECANE PRZEZ DERMATOLOGÓW).
Evening
Crystal Retinal®
Select a Size
Step 5: Moisturise
Otwarty matowy szklany słoiczek Medik8 Total Moisture Daily Facial Cream z widoczną porcją białego kremu na wierzchu, na czystym białym tle. W górnych rogach grafiki znajdują się oznaczenia „Daisy Beauty Awards Vinnare 2025” (zwycięzca) oraz „Dermatologist Recommended”.
Morning
Evening
Total Moisture Daily Facial Cream™
Select a Size
Key Ingredients
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.

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 List of Ingredients
C-Tetra Luxe
Lipid 14% Vitamin C Enhanced Radiance Serum

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.

*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.
  • Dermatologically tested
  • Clinically proven formula
  • No artifical fragrance
  • No synthetic colours
  • Alcohol free
  • Used in professional treatments
Experts Recommended

The perfect option for supercharged skin radiance plus visible line-smoothing results.

DANIEL ISAACS
Chief Product Officer

Your skin needs this like the desert needs the rain!

POLLY VERNON
Features Writer - The Times

The Vitamin C Serum Range

Reviews

Frequently Asked Questions

Can I use C-Tetra Luxe if I'm pregnant or breastfeeding?
As general guidance, this product does not contain any ingredients which we would recommend to avoid during pregnancy, unless advised by your doctor.
What vitamin C strength is C-Tetra Luxe?
C-Tetra Luxe contains 14% stabilised vitamin C (tetrahexyldecyl ascorbate).
Can I use a vitamin C serum alongside vitamin A?
Absolutely. In fact we recommend it as part of our pioneering CSA Philosophy which champions vitamin C plus sunscreen by day, vitamin A by night as the simple secret to glowing, youthful-looking skin.
Can I layer C-Tetra Luxe with Clarity Peptides in the morning?
Yes, you can. We would recommend applying C-Tetra Luxe first (an oil-based serum), followed by Clarity Peptides (an emulsion-based serum).
C-Tetra Luxe
Full Size (30ml)
Full Size (30ml)