Guinot Vitamin C Brightening Serum (25ml)
– Then pour the powder contained in the vial into the bottle of serum and mix vigorously.
– Pump twice. Using the fingertips, apply the serum in light dabs.To improve and accelerate the brightening results of the Vitamin C Brightening Serum, use the Brightening Day Cream SPF 30 and/or Brightening Night Cream.This product contains pure Vitamin C whose colour may vary over time. For optimal effectiveness, use the serum within 14 days of mixing the ingredients.