Meet the needs of skin altered by acne or ageing with the Institut Esthederm Intensive Retinol Oil Serum, a high concentration anti-wrinkle and healing serum.The Intensive Retinol Oil Serum will accelerate cellular renewal, re-densifying and helping to strengthen the structure of the skin to create a youthful, more unified look. The formula contains a 0.3% concentration of retinol, the most active form of vitamin A, which works to target wrinkles and firm the skin.An everyday solution for deep wrinkles, acne scaring and photo-ageing, this targeted serum will unveil a smoother, visibly brighter complexion day after day.Apply alone every night to the face, neck and décolleté. If burning or discomfort is felt, combine a small amount with the Institut Esthederm Intensive Retinol Cream and gradually increase quantity until normal use of treatment.During treatment use sun protection and avoid alcohol-content cleansers and aggressive exfoliators. Do not use in the summer.