Turn applicator ON. Tilt chin up and roll applicator over entire neck, from the décolleté up to the jawline. Gently squeeze tube to dispense a thin layer of serum while rolling. Return the applicator to the OFF position and continue rolling it in an upward motion over skin to massage in the serum. Keep chin up until serum dries. Then apply your recommended Dermalogica moisturiser, if needed. Use this serum morning and night.