Based on retinol or vitamin A, it is a powerful anti-wrinkle serum. Able to stimulate the skin's natural cell renewal, vitamin A visibly reduces marked signs and irregular relief (thick skin, post-acne scars, dark spots). The addition of yarrow extract to the formula intensifies the rejuvenating action of the skin surface. Instructions for use: External use\ Apply (exclusively at night because it is photosensitizing) 8 administrations (equivalent to 1 ml) on the face, neck and décolleté after thorough cleansing and massage gently until completely absorbed. Leave on skin for a few minutes before applying other products.