








C-TETRA Advanced
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High-performance 20% vitamin C gel-serum for brightening, smoothing, and antioxidant defense.
- Contains 20% stabilized vitamin C (Tetrahexyldecyl Ascorbate) for dramatic skin brightening and antioxidant protection
- Includes phyto exosomes to deliver restorative bioactives rapidly, supporting skin resilience and barrier health
- Formulated with acetyl zingerone, a powerful antioxidant that neutralizes free radicals and shields skin from environmental stress
- Features multi-weight hyaluronic acid for deep hydration and N-acetyl glucosamine for pore refinement and improved skin texture
Size: 30 ml / 1 Fl. Oz.
Apply 2-3 pumps of C-Tetra Advanced across face, neck, and décolletage each morning after cleansing. Follow with moisturizer and always finish with sunscreen for optimal protection.
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Quality Skincare from The M-ethod Skin with
a Peace of Mind
The M-ethod Skin Concierge
Your partner in skincare
At The M-ethod Skin, we provide you with ongoing skincare support (via WhatsApp/ text/ email/ phone) with each order. It's our way of showing appreciation and taking care of our clients. Request your skincare account to start your journey with us.
Our products are thoughtfully designed to give you access to as much product as possible, while maintaining the benefits of our proprietary formulations over the course of their shelf life and minimizing our carbon footprint.






