Synergie Skin Effica CA rapidly absorbing, non acidic vitamin C serum suitable for all skin types, including sensitive skin. The biocompatible formula provides gentle and targeted penetration for maximum results. Vitamin C and coenzyme Q10 work in tandem to deliver a potent dose of antioxidants, reduce the appearance of fine lines and wrinkles, promote even skin tone, reduce age spots, and protect against UV and environmental damage.