Medik8 C-Tetra Vitamin C Serum 30 ml is a lightweight radiance-boosting serum designed to brighten smooth and protect the skin. Using stabilised lipid-soluble vitamin C it absorbs quickly to improve clarity support collagen and enhance luminosity. The silky formula helps soften fine lines hydrate the complexion and reveal a fresher brighter more even skin tone...
Medik8

Medik8 C-Tetra Vitamin C Serum 30ml

Medik8 C-Tetra Vitamin C Serum 30 ml is a lightweight radiance-boosting serum designed to brighten smooth and protect the skin.

Vitamin CCollagenBrighteningHydratingAnti-Ageing
£45.00

Genuine products · Expert-curated · Fast, tracked UK dispatch

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How to use

Apply in the morning to cleansed dry skin.

Masage a few drops over the face neck and décolleté.

Follow with moisturiser then SPF.

Suitable for daily use.

Ingredients (INCI)

Lipid 7% Vitamin C Radiance Serum Simmondsia Chinensis (Jojoba) Seed Oil, Cyclopentasiloxane, Cyclohexasiloxane, Tetrahexyldecyl Ascorbate, Citrus Grandis (Grapefruit) Peel Oil, Tocopheryl Acetate, PPG-12/SMDI Copolymer, Limonene, Citral, Linalool, Geraniol.

100% genuineAuthorised UK stockist
Expert-curatedBy skincare specialists
Fast, tracked deliveryDispatched from the UK
Earn Bay PointsRewards on every order

The benefits of NAD+

The benefits

Brightens dull uneven skin

Supports collagen for improved firmness

Softens fine lines and enhances smoothness

Provides daily antioxidant protection

Lightweight fast-absorbing texture

Hydrates for a softer more radiant complexion

Suitable for all skin types including sensitive

Medik8 C-Tetra Vitamin C Serum 30mlMedik8 C-Tetra Vitamin C Serum 30ml
IN YOUR ROUTINE

Made to fit your everyday

Simple to use and easy to love. Slot it into your morning or evening routine and let it get to work.

The science of NAD+

The science explained

Medik8 C-Tetra Vitamin C Serum 30 ml is a lightweight radiance-boosting serum designed to brighten smooth and protect the skin. Using stabilised lipid-soluble vitamin C it absorbs quickly to improve clarity support collagen and enhance luminosity. The silky formula helps soften fine lines hydrate the complexion and reveal a fresher brighter more even skin tone with daily use.

C-Tetra is a revitalising antioxidant serum formulated to restore radiance support firmness and defend the skin against daily environmental stressors. Powered by tetrahexyldecyl ascorbate a stabilised lipid-soluble form of vitamin C it penetrates effectively to brighten dullness even tone and improve visible smoothness. Vitamin E enhances antioxidant defence while hydrating ingredients help maintain softness and comfort throughout the day.

Perfect for morning use this gentle yet effective serum leaves the skin glowing smooth and refreshed.

Medik8 C-Tetra Vitamin C Serum 30mlMedik8 C-Tetra Vitamin C Serum 30ml
WHY IT WORKS

Considered, quality formulation

Carefully formulated and curated by theskinbay for real, visible results.

How to use

How to use it

Apply in the morning to cleansed dry skin.

Masage a few drops over the face neck and décolleté.

Follow with moisturiser then SPF.

Suitable for daily use.

Emmalee Fitton, founder of theskinbay
Founder's favourite
Every product we stock is one I would happily use myself. Curated skincare, honest advice, and results you can feel.
Emmalee x
Founder, theskinbay
Complete the ritual
Complete your routine

Expert-selected by The Skin Bay to work alongside Medik8 - both formulated to complement each other for enhanced results.

Buy them together£90.00

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Your questions answered

Your questions answered
Are your products genuine?

Yes. Everything we sell is 100% genuine, sourced from the brand or authorised UK suppliers.

How fast is delivery?

Orders are dispatched quickly and tracked across the UK. See our delivery page for full timings.

What is your returns policy?

Unopened items can be returned within our standard returns window. See our returns page for details.

Do you offer rewards?

Yes. Earn Bay Points on every order to redeem against future purchases.

Need help choosing?

Our team can help you build the right routine. Reach out any time and we will point you in the right direction.