Medik8 C-Tetra Luxe Serum with vitamin C and antioxidants 30ml

What is C-Tetra Luxe and how does it differ from C-Tetra 7%?

C-Tetra Luxe is the premium version of Medik8's vitamin C serum range — with 14% THD, double the vitamin C concentration of the original C-Tetra (7%), in a richer, more nourishing lipid base. It's the choice for those seeking advanced radiance, pigmentation reduction and intensive antioxidant protection combined with deep skin nourishment.

Key active ingredients

• 14% Tetrahexyldecyl Ascorbate (THD) — stabilised lipid vitamin C with 12-month post-opening stability: intensive antioxidant protection, brightening and collagen stimulation — without irritation risk.
• Squalane — a lipid ingredient structurally close to skin's own lipids, reinforces the protective barrier and provides light, non-occlusive nourishment.
• Passion fruit oil — naturally rich in fatty acids and nutrients, deeply nourishes and provides additional free radical protection.
• Optimised red ginseng — amplifies the brightening effect of vitamin C, stimulates collagen production, contributes to a younger-looking complexion.
• Vitamin E (tocopherol) — potent antioxidant synergistically amplifying THD action, photoageing protection.
• Vitamin F — essential fatty acids (PUFA), clinically supports skin barrier reinforcement.

Clinically proven results*

• after just 1 hour — skin visibly brighter and younger-looking,
• 7 days to a radiant, glowing complexion,
• 94% of participants — skin smoother and softer after a single use,
• 81% of participants — visible pigmentation reduction at 4 weeks,
• 86% of participants — the best vitamin C serum they have ever used.

*Independent clinical study of C-Tetra Luxe, 4 weeks, 32 participants.

Benefits

• intensive brightening and skin tone evening,
• pigmentation reduction — clinically confirmed,
• reduced visibility of fine lines and wrinkles,
• deep nourishment and barrier reinforcement,
• powerful antioxidant protection,
• collagen synthesis support (THD + ginseng),
• intense radiance and glow — visible from first use.

Who is C-Tetra Luxe for?

• dry and dehydrated skin — needing intensive nourishment alongside brightening,
• mature, more experienced skin — seeking advanced anti-ageing support,
• skin with visible pigmentation needing stronger action than C-Tetra 7%,
• those ready to step up from C-Tetra 7%,
• most skin types except very oily or acne-prone.

How to use

• Time: morning, after cleansing.
• Amount: 6 drops warmed in the hands, then pressed into face, neck and décolletage.
• Order: after toner, before SPF moisturiser.
• Patch test: recommended 24 hours before first full facial use.

Specifications

• Volume: 30 ml
• Vitamin C concentration: 14% THD
• Texture: rich velvety oil / lipid serum
• Skin type: dry, dehydrated, mature, most types
• Standards: dermatologist tested, clinically proven, used in professional treatments
• Free from: artificial fragrances, synthetic dyes, parabens, alcohol
• Awards: Get The Gloss Beauty Awards Gold 2024, Dermatologist Recommended
• Manufacturer: Medik8 (UK) | EU Responsible Person: TRC 2514, AA, NL

FAQ – questions and answers

Why does C-Tetra Luxe require 6 drops instead of 4?

The richer, more velvety lipid base with higher THD concentration (14%) requires slightly more product to evenly cover the face, neck and décolletage. 6 drops is the optimal dose for full coverage without waste or overloading the skin.

What does red ginseng do in C-Tetra Luxe?

Optimised red ginseng amplifies the brightening and rejuvenating effect of the formula. It activates cellular mechanisms supporting collagen production and enhances the brightening action of THD — the synergy of both delivers more intensive radiance and skin quality improvement than increasing vitamin C concentration alone.

Is C-Tetra Luxe suitable for oily skin?

C-Tetra Luxe has a richer, more oil-based texture — it is particularly suited to dry and dehydrated skin. For oily or combination skin, C-Tetra (7%, lightweight oil) or C-Tetra Advanced (20%, lightweight gel-serum) are better choices. Combination skin types may use C-Tetra Luxe on drier facial areas.

When should I choose C-Tetra Luxe over C-Tetra 7% or C-Tetra Advanced?

C-Tetra Luxe 14% is the ideal choice when you want more intensive brightening and a richer texture than C-Tetra 7%, but don't yet need the 20% concentration of C-Tetra Advanced. Perfect for dry or dehydrated skin with wrinkles and pigmentation, seeking a comprehensive result: brightening + rejuvenation + nourishment in a single product.

• What is C-Tetra Luxe and how does it differ from C-Tetra 7%?
• Key active ingredients
• Clinically proven results
• Benefits
• Who is C-Tetra Luxe for?
• How to use
• Specifications
• FAQ