This intensive serum contains 20 vitamin c to help maintain collagen production lighten dark spots and brighten your overall complexion after repeated use wrinkles lines and age spots look visibly reduced and skin feels firmer perfect for all skin types no parabens no sulphates no phthalates fragrance free to use squeeze 4 to 5 drops into your hand then either mix with a face cream or use the serum alone and apply evenly to face and neck use each morning and evening