Vitamin C is one of the most sought-after skincare ingredients for brighter, healthier-looking skin. Medik8 has taken this powerhouse antioxidant to the next level with its C-Tetra range. With three high-performing serums—Medik8 C-Tetra, C-Tetra Advanced and C-Tetra Luxe—which one is right for your skin?
In this guide, we break down the key differences between these popular serums to help you choose the best vitamin C serum for your skin type and goals.
Medik8 C-Tetra: The Original Glow Booster
Key benefits:
- 7% tetrahexyldecyl ascorbate (a stabilised, lipid-soluble form of vitamin C)
- Enriched with vitamin E for antioxidant synergy
- Lightweight, fast-absorbing oil texture
- Helps reduce visible signs of ageing and enhances radiance
Best for: All skin types, especially sensitive or those new to vitamin C
Why choose Medik8 C-Tetra?
If you're looking for a gentle, no-fuss vitamin C serum to brighten your complexion and protect against environmental damage, this is the one to start with.
Medik8 C-Tetra Advanced: The Next Generation of Radiance
Key benefits:
- 15% tetrahexyldecyl ascorbate for more intensive antioxidant action
- Squalane for lightweight hydration and barrier support
- Saskatoon berry and vitamin E for additional free radical protection
- Smooths skin texture and visibly brightens uneven tone
Best for: Dull or tired-looking skin, experienced vitamin C users, those wanting faster results
Why choose Medik8 C-Tetra Advanced?
C-Tetra Advanced is Medik8's newest launch in the C-Tetra family. This upgraded formula is perfect for those who want to take their skincare results to the next level without irritation. It offers a powerful antioxidant boost and visible improvements in brightness and skin smoothness.
Medik8 C-Tetra Luxe: For Skin That Needs a Little Extra
Key benefits:
- 14% tetrahexyldecyl ascorbate
- Infused with maracuja oil, red ginseng and vitamin F
- Squalane and vitamin E for hydration and antioxidant protection
- Richer oil texture delivers comfort and glow
Best for: Dry, mature or stressed skin types
Why choose Medik8 C-Tetra Luxe?
C-Tetra Luxe offers all the brightening benefits of vitamin C with added support for hydration and barrier care.
Which Medik8 C-Tetra Serum Should You Use?
Choosing between Medik8 C-Tetra, C-Tetra Advanced, and C-Tetra Luxe comes down to your skin's needs and your experience with vitamin C.
- Start with C-Tetra if you're new to vitamin C or have sensitive skin.
- Opt for C-Tetra Advanced if you want more noticeable brightening and antioxidant benefits with a lightweight feel.
- Go for C-Tetra Luxe if your skin is dry or mature, or if you simply love a rich, comforting formula that does it all.
Each of these vitamin C serums is designed to fit seamlessly into your morning routine, protecting your skin from free radicals while helping to restore a natural glow.
For those who prefer a cream-based formula, Medik8 C-Tetra Cream offers the same brightening benefits in a nourishing moisturiser that’s ideal for daily antioxidant protection.
Ready to find the right vitamin C serum for your skin? Explore the full Medik8 range at SkinShop.ie
