Suitable for all skin types, the glo therapeutics 10% Vitamin C Serum (30ml) works to improve the complexion from all angles. Fine lines and wrinkles are smoothed, skin tone evened, and sun damage is repaired whilst protecting you from further harm and free radicals. The Vitamin C enriched formula stimulates collagen production alongside other plumping properties which contribute to a youthful appearance and firmer skin. - K.R Directions for use: Apply every morning before moisturising. Allow serum to fully absorb into the skin before applying your moisturiser of choice.