C-Tetra® Advanced

Defend your skin from signs of premature aging and experience accelerated brightness.

This next-generation Vitamin C serum combines 20% stabilized Vitamin C and advanced phytoexosomes, which support the skin's natural defense mechanism and help it recover from environmental stress.

Clinically proven to brighten skin and smooth wrinkles in just 7 days - without compromising the skin's protective barrier.
C-Tetra Advanced provides visible radiance, a more even skin texture, and daily antioxidant protection.

This intelligent formulation combines potent Vitamin C with restorative phytoexosomes and acetyl zingerone, which neutralizes free radicals and supports skin vitality.
The result is an effective yet gentle serum that works with your skin - not against it.

Proven results:

• Brighter, more even skin in 7 days*
• Visibly reduced lines in 7 days*
• 0% weakening of the skin's protective barrier*
• 90% less pollution damage on the skin surface**

*Independent clinical study, 4 weeks, 32 participants.
**In vitro study on the effects of particulate pollution on skin proteins.