ELASTIderm Neck and Decollete Concentrate is a potent solution for the distinct signs of skin aging on the neck and upper chest like sagging horizontal lines and uneven skin tone. The roller bar leverages mechanobiology a cutting-edge scientific principle that suggests mechanical stimulation may reveal visual improvement to skin elasticity and texture. Benefits: Firm: support healthy elastin Smooth: Decease the look of fine lines and wrinkles Brighten: improves uneven skin tone How to Use: AM/PM After cleansing apply serum twice daily (morning and evening) Step 1: Twist applicator until the arrow is aligned with the ON position. Step 2: During application gently squeeze tube to dispense a thin layer of serum while gliding along the skin. Step 3: Tilt chin up and roll applicator over entire neck from the décolleté up to the jawline in an upward motion. Step 4: Twist applicator off until arrow is aligned with the OFF position. Step 5: Continue rolling it in an upward motion over skin to massage in the serum. Keep chin up until serum dries fully. Let area dry before putting on clothing that may cover the neck or chest area. Replace cap firmly and store it away from direct heat and light (including sunlight).