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.
KEY BENEFITS
Dramatic Skin Brightening
 
Clinically proven to visibly brighten skin and even tone in 7 days for a radiant, luminous complexion.[1]
 
Premature Skin Ageing Defence
 
Shields skin from damaging free radicals, pollution, and daily environmental stressors to help defend against premature skin ageing.
 
Skin Barrier Support & Enhanced Resilience
 
Powerful phyto exosomes work to reinforce the skin’s natural defence system, deliver replenishing bioactives to skin cells rapidly & effectively, ensuring 0% barrier disruption.[1]
 
Smooth & Even Complexion
 
Clinically proven to visibly improve skin smoothness and texture in 7 days, leaving a soft, polished finish.[1]
 
Lightweight Finish
 
The fast-absorbing gel-serum texture hydrates, smooths, and primes, leaving skin instantly refreshed and ready for the day ahead.
 
PROVEN RESULTS
7days to visibly brighter skin⁽¹⁾
7days to visibly reduced wrinkles⁽¹⁾
0%barrier disruption⁽¹⁾
7days to visibly smoother skin texture⁽¹⁾
90%reduction of pollution damage to the skin’s surface⁽¹⁾
[1] Proven via independent clinical study conducted over 4 weeks on 32 participants. [2] Proven via in vitro protein carbonylation data against particulate matter pollution on the stratum corneum and epidermis. [3] Proven via in vitro protein carbonylation study using European standard reference environmental pollutants.
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.