Vitamin C is a highly popular skincare ingredient known for promoting brighter, healthier-looking skin. Medik8 has elevated this powerful antioxidant with its C-Tetra range, which includes two standout serums — C-Tetra and C-Tetra Luxe.
But what’s the difference between Medik8 C-Tetra vs C-Tetra Luxe—and which one is best for you?
In this guide, we break it down.
Medik8 C-Tetra vs C-Tetra Luxe: At a Glance
| Feature | Medik8 C-Tetra | Medik8 C-Tetra Luxe |
|---|---|---|
| Vitamin C strength | 7 % tetrahexyldecyl ascorbate | 14 % tetrahexyldecyl ascorbate (≈ double) |
| Texture | Lightweight oil-serum | Rich oil-serum with added lipids |
| Key additional ingredients | Vitamin E | Squalane, maracuja oil, red ginseng, vitamin F, vitamin E |
| Best suited skin types | All skin types — especially sensitive or vitamin C beginners | Dry, mature or stressed skin types; or anyone looking for richer feel |
| Radiance / brightening focus | Gentle brightening, minimal risk of irritation | Enhanced brightening + nourishment + barrier support |
| Role in morning routine | Use after cleansing, before moisturiser & sunscreen | Same, but may replace moisturiser for richer feel OR layer afterwards depending on texture |
| Ideal user scenario | New to Vitamin C, sensitive skin, want simpler step | Want upgraded effect, have dryness or barrier issues, prefer richer texture |
Medik8 C-Tetra: The Original
Medik8 C-Tetra 30 ml
A lightweight daily vitamin C serum designed to brighten the complexion, even out skin tone, and shield against free-radical damage. Perfect for restoring radiance and revitalising dull skin without irritation.
Key benefits:
- Lightweight, fast-absorbing oil texture
- Helps reduce visible signs of ageing and enhances radiance
Best for: All skin types—especially if you have sensitive skin or are new to Vitamin C.
Why choose Medik8 C-Tetra?
If you’re new to Vitamin C, C-Tetra is the perfect place to start. It delivers visible brightening and protection without overwhelming the skin, making it a great introductory serum for daily use.
Medik8 C-Tetra Luxe: The Upgrade
Medik8 C-Tetra Luxe 30 ml
This luxurious, lipid-rich serum is 2X the strength of the original C-Tetra formula with additional nourishing antioxidants. It deeply hydrates, supports the skin barrier, and delivers a radiant, youthful glow.
Key benefits:
- Squalane and Vitamin E for added moisture and antioxidant protection
- Richer oil texture for comfort and glow
Best for: Dry, mature, or stressed skin types.
Why choose Medik8 C-Tetra Luxe?
If your skin needs extra nourishment or you prefer a richer texture, C-Tetra Luxe offers everything the original does—and more. It’s ideal for those ready to level up their Vitamin C routine with added hydration and barrier support.
Which Medik8 C-Tetra Serum Should You Use?
Choosing between C-Tetra, and C-Tetra Luxe depends on your skin type and Vitamin C experience:
- Start with C-Tetra if you’re new to Vitamin C or have sensitive skin.
- Go for C-Tetra Luxe if your skin is dry, mature, or you love a rich, comforting formula that delivers intense glow.
Each serum is formulated to fit seamlessly into your morning routine, protecting against free-radical damage while restoring your natural radiance.
Where To Buy Medik8
Shop the full range of Medik8 Skincare products at My Haircare & Beauty!
- 100% genuine Medik8 products
- Fast, reliable shipping Australia-wide
- Loyalty rewards on every order
- Expert advice to help you choose the right products for you
Mel is a former Hair Stylist with over a decade of industry experience.
She enjoys writing about all aspects of the hair & beauty world including, trends, new products & best-sellers.
