C-Tetra™ Advanced Gel-Serum

High-potency vitamin C gel-serum for maximum radiance and antioxidant defense

I’ve been testing the Medik8 C-Tetra Advanced Gel-Serum, and it is a stellar daily treatment for brightening dull or tired complexions. The innovative gel-serum texture is highly practical - it spreads beautifully and absorbs effortlessly into the skin without leaving a greasy residue or causing irritation, which is rare for a high-strength formula. Powered by a 20% stable vitamin C complex and phyto-exosomes, it works beautifully to defend against environmental stressors, fade stubborn dark spots, and reveal a visibly uniform, radiant glow.

Great product, noticeable glow.

At first this product gave my sensitive skin tiny itchy bumps like all vitamin c products do. But after using it a few days they went away and never returned even with using it nearly every day. I’ tried so many vitamin c creams before this one and had bad reactions, this is the only one I’ll use from now on!

Goodbye Dull Skin!

This makes my skin so bright and glowy! I was worried about using a gel product, because usually they make my makeup pill. This product doesn't do that as long as you wait a minute or 2 between products.