Medik8 C-Tetra Luxe Lipid Vitamin C Enhanced Radiance Serum
What Is Medik8 C-Tetra Luxe?
Medik8 C-Tetra Luxe is an advanced lipid-based vitamin C serum that delivers exceptional antioxidant protection, visible brightening, and deep nourishment to the skin. With a high-strength 14% concentration of stabilized vitamin C (tetrahexyldecyl ascorbate), it is the most potent formulation in Medik8’s C-Tetra range — clinically proven to reduce hyperpigmentation, smooth fine lines, and restore radiance within just 4 weeks.*
Luxuriously silky and fast-absorbing, this serum is ideal for those seeking elevated antioxidant defense, skin rejuvenation, and a more even, luminous complexion — all while supporting and strengthening the skin barrier.
Recommended for most skin types, including sensitive and dry, C-Tetra Luxe is the perfect next step for those already using vitamin C or beginning their CSA (Vitamin C + Sunscreen by day, Vitamin A by night) routine.
Who Is It For?
- All skin types, especially dry, dull, and sensitive skin
- Ideal for those looking to target fine lines, dullness, dark spots, or pigmentation
- Excellent for users progressing from the original C-Tetra Serum
- Suitable for those following a preventative or corrective anti-aging routine
Key Benefits
- Boosts Radiance in Just 1 Use – Clinically proven to brighten and smooth the skin’s appearance after just one application
- Reduces Fine Lines & Wrinkles – Supports collagen synthesis, visibly softening signs of aging
- Improves Hyperpigmentation – Helps fade dark spots and uneven tone in just 4 weeks*
- Deeply Nourishes & Strengthens – Squalane and vitamin F restore lipid levels and reinforce the skin barrier
- Lightweight, Non-Greasy Texture – Luxurious velvety finish, perfect for layering
Active Ingredients & Their Functions
- 14% Tetrahexyldecyl Ascorbate (Stabilised Vitamin C): A gentle, oil-soluble derivative of vitamin C, known for its superior stability and efficacy. Brightens, firms, and protects against oxidative stress without irritation.
- Squalane: A skin-identical lipid that delivers long-lasting hydration and strengthens the skin barrier. Ideal for softening and comforting dry or compromised skin.
- Vitamin E (Tocopheryl Acetate): An antioxidant that works synergistically with vitamin C to neutralize free radicals, boosting visible results.
- Maracuja (Passion Fruit) Oil: Rich in essential fatty acids and nutrients, it nourishes and smooths the skin while enhancing antioxidant protection.
- Optimised Red Ginseng: A botanical powerhouse that boosts skin brightness and supports youthful texture by stimulating collagen synthesis.
How to Use C-Tetra Luxe
- Morning Routine: After cleansing, apply 6 drops of C-Tetra Luxe to the face, neck, and décolleté.
- Gently massage in upward motions until fully absorbed.
- Follow with broad-spectrum SPF, such as Medik8 Advanced Day Ultimate Protect.
Tip: As part of the CSA Philosophy, combine this morning serum with Medik8’s Crystal Retinal at night for optimal age-defying results.
Related Products for a Complete Routine
- Cleanser: Medik8 Surface Radiance Cleanse™ – AHA/BHA Mangosteen gel cleanser to prep skin and refine pores.
- Toner: Medik8 Press & Glow® – Gentle daily PHA exfoliant to enhance vitamin C absorption.
- Moisturizer & SPF: Medik8 Advanced Day Ultimate Protect™ – SPF 50+ with photolyase to guard against photoaging.
- Night Serum: Medik8 Crystal Retinal® – Vitamin A serum to complete your CSA anti-aging ritual.
Beauty Routine Suggestion: Medik8 CSA Protocol (Morning + Evening)
Step Morning
- Surface Radiance Cleanse Surface Radiance Cleanse
- Press & Glow Tonic Press & Glow Tonic
- C-Tetra Luxe Serum
- Advanced Day Ultimate Protect SPF 50+
Step Evening
- Surface Radiance Cleanse Surface Radiance Cleanse
- Press & Glow Tonic Press & Glow Tonic
- Crystal Retinal
- Nourishing Night Moisturizer
Frequently Asked Questions
- Is this suitable for sensitive skin? Yes. C-Tetra Luxe is formulated with a low-irritation form of vitamin C and tested on sensitive skin.
- How is it different from the original C-Tetra Serum? C-Tetra Luxe contains double the concentration of vitamin C (14% vs. 7%), plus nourishing oils like squalane and passion fruit oil, making it better suited for those with dry skin or seeking enhanced anti-aging results.
- Does it have fragrance? No artificial fragrance. Naturally scented from grapefruit peel oil.
Why Choose Medik8 C-Tetra Luxe?
- Clinically Proven Results
- Certified Vegan & Cruelty-Free
- Free from parabens, alcohol, synthetic colors & fragrance
- Used in professional dermatology treatments worldwide
Need Personalized Advice?
At Lyskin, our team of skincare advisors is here to guide you. Visit the product’s Q&A tab to ask your questions and get professional, personalized recommendations.






















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