Lancôme Absolue Bi-Ampoule to helps smooth dehydration lines, improve skin dullness and increase skin elasticity. 1. On first use, vigorously shake the formula until the two layers are evenly mixed.* 2. Open the dropper cap, hold the rubber part and gently press to release the formula. 3. Apply 4-6 drops of the our Repairing Bi-Ampoule on facial areas that are of concern and gently sweep the texture over face and neck with fingertips. *Activation by mixing the bi-phase technology is required only before first use, after that the formula will remain mixed. Recommended to use at night on clean, damp skin before your moisturizer. Complete your routine with your usual skincare.