Cattier's SOS Hydration Serum, certified organic, with its fine and comfortable texture, is a true booster of skin hydration. Instructions for use: 1.Shake before use.Apply and massage all over the face, neck and décolleté.BEFORE, cleanse or remove make-up from the face with a product adapted to your skin type AFTERWARDS, allow the serum to penetrate for a few seconds and apply the moisturizing day treatment (in the morning) or the moisturizing cream for sleeping (in the evening)