Medik8 C-Tetra Advanced vitamin C serum—powerful antioxidant formula for brightening and anti-aging.

Before and after comparison of skin texture with a Medik8 C-Tetra Advanced.

C-Tetra Advanced serum texture by Medik8—lightweight, fast-absorbing vitamin C gel for radiant skin without barrier disruption.

Before and after comparison of skin with a Medik8 C-Tetra Advanced in 7 days showing visible improvement.

C-Tetra Advanced serum ingredients by Medik8—lightweight, fast-absorbing vitamin C gel for radiant skin.

Cosmetic product layering guide with Medik8 skincare products on an orange background

MEDIK8

C-TETRA Advanced

Name: C-TETRA Advanced
Brand: MEDIK8
Price: 69.00 GBP
Availability: InStock

£69.00

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Recommended for:

Brightening Skin Tone
Strengthening & Nourishing

High-performance 20% vitamin C gel-serum for brightening, smoothing, and antioxidant defense.

Contains 20% stabilized vitamin C (Tetrahexyldecyl Ascorbate) for dramatic skin brightening and antioxidant protection
Includes phyto exosomes to deliver restorative bioactives rapidly, supporting skin resilience and barrier health
Formulated with acetyl zingerone, a powerful antioxidant that neutralizes free radicals and shields skin from environmental stress
Features multi-weight hyaluronic acid for deep hydration and N-acetyl glucosamine for pore refinement and improved skin texture

Size: 30 ml / 1 Fl. Oz.

Learn More

Experience a cutting-edge vitamin C serum clinically proven to visibly brighten skin, reduce wrinkles, smooth texture, and defend against premature aging without barrier disruption. This lightweight gel-serum absorbs quickly, leaving skin radiant, refreshed, and protected every day.

Key Ingredients

20% Stabilized Vitamin C (Tetrahexyldecyl Ascorbate): Potent brightening and antioxidant

Phyto Exosomes: Enhance skin renewal and resilience

Acetyl Zingerone: Superior free radical neutralizer and shield against pollution

Multi-Weight Hyaluronic Acid: Deep and surface hydration

N-Acetyl Glucosamine: Supports skin barrier and smooths appearance of pores

Full Ingredients

Aqua (Water), Tetrahexyldecyl Ascorbate, Isododecane, Propanediol, Acetyl Glucosamine, Squalane, Tocopherol, Acetyl Zingerone, Camellia Sinensis (Green Tea) Leaf Vesicles, Hydroxyacetophenone, Sodium Hyaluronate, Cellulose, Avena Sativa (Oat) Kernel Extract, Glycerin, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Citrus Grandis (Grapefruit) Peel Oil, Sucrose Stearate, Tetrasodium Glutamate Diacetate, Ethylhexylglycerin, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Xanthan Gum, Sodium Benzoate, Cellulose Gum, 1,2-Hexanediol, Polysorbate 60, Sorbitan Isostearate, Citric Acid, Phenoxyethanol, Citral, Linalool, Limonene.

Directions

Apply 2-3 pumps of C-Tetra Advanced across face, neck, and décolletage each morning after cleansing. Follow with moisturizer and always finish with sunscreen for optimal protection.

C-TETRA Advanced

£69.00

Quality Skincare from The M-ethod Aesthetics with

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ABOUT MEDIK8

Discover the Medik8 range—science-driven skincare that harnesses the power of advanced ingredients like multi-weight hyaluronic acid and potent antioxidants. Designed to deliver visible, lasting hydration and skin health, Medik8 offers tailored solutions for all skin types with a clinical approach trusted worldwide. Explore the collection and elevate your skincare routine with proven performance.

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