Image 1 of 1 ZO 10% Vitamin C Self Activating Sale Price: $44.00 Original Price: $110.00 sold out 10% vitamin C that brightens skin, promoting a more even skin tone and minimizing the appearance of fine lines and wrinkles. Sold Out Added! 10% vitamin C that brightens skin, promoting a more even skin tone and minimizing the appearance of fine lines and wrinkles.