# Medik8 - C-Tetra Advanced Serum

### DESCRIPTION

Defend against premature skin ageing and achieve accelerated skin brightening with a next-generation combination of 20% vitamin C and skin barrier science. 

Clinically proven to brighten skin and visibly improve wrinkles in 7 days\[1\] with 0% barrier disruption\[1\], C-Tetra Advanced is engineered for high-performance visible brightening, skin smoothing, and daily antioxidant defence. 

This intelligent ingredient complex combines potent, stabilised 20% vitamin C with restorative phyto exosomes for deep, controlled delivery and omni-antioxidant acetyl zingerone to neutralise the ageing effects of free radicals. 

The result? A high-performance, age-defying vitamin C serum that works smarter, not harsher.

### HOW TO USE

Apply as part of your morning skincare routine. Massage 2-3 pumps across the face, neck and décolletage. Follow with moisturiser and always finish with sunscreen.

## Details

- **Price:** 120.0 AUD
- **Vendor:** Medik8
- **Type:** Skincare

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 120.00 AUD | In stock |

## Images

- Medik8 - C-Tetra Advanced Serum
- Medik8 - C-Tetra Advanced Serum
- Medik8 - C-Tetra Advanced Serum
- Medik8 - C-Tetra Advanced Serum
- Medik8 - C-Tetra Advanced Serum
- Medik8 - C-Tetra Advanced Serum
- Medik8 - C-Tetra Advanced Serum

---

> Source: [Ascent Luxury Cosmetics](https://ascentluxurycosmetics.com.au/products/medik8-c-tetra-advanced-serum)
> Updated: 2026-09-13