Recommended for Most skin types, especially those with mature, sun-damaged skin. Not suitable for blemished or congested skin. Assists in providing advanced antioxidant activity to help protect the skin from modern environmental hazards such as pollution and UV radiation. Environ’s C-Quence Serum 2 is the second phase in their premium vitamin step-up system, for use by consumers whose skin is already comfortable with C-Quence Serum 1. It contains a medium concentration of vitamin A and a significantly higher concentration of vitamin C.