A VC serum, also known as Vitamin C, can be used to reduce the appearance of age spots and wrinkles. Its potent antioxidant properties are not just limited to smoothing the skin's surface--it can also improve your skin's barrier function by healing any small cracks in the top layer. A VC serum is useful for evening out discoloration and restoring elasticity which makes it an essential part of our Private Label face serum kit.