Here’s how to use Lancôme Génifique Youth Activating Concentrate Serum: Twist to open the self-loading dropper of the Lancome Genifique Serum. Dispense the Lancome Advanced Genifique Youth Activating Serum from the dropper into your hand. Apply it gently on clean skin - across your forehead, cheeks, chin and on your neck. Follow it up with your go-to moisturiser.