Mature, Irregular Skin Tone, Oxygen-Poor Supercharges skin's response time to treatments, dramatically boosting results. Builds resistance to visible aging and supports skin's ability to renew and repair itself. Normalizes "smoker's skin." For all skin over 30. Part of Microdermabrasion Skin Recovery System. HOME CARE: Smooth 1 to 4 pumps of fluid over clean skin before applying moisturizer, sunscreen, or makeup. May blend 1 to 2 pumps of fluid with moisturizer or other complexes.