Apply this serum for oily skin sparingly morning and evening to clean skin. Apply over entire face, neck and behind ears. C-ESTA Serum Oil Control can also be applied: In spots or areas. For example, on the T-Zone over sunscreen or just on the nose or forehead, etc. over sunscreen. Apply sparingly to the appropriate areas and massage in thoroughly. On oily upper eyelids in order to enhance eye shadow wear and prevent creasing. Apply facial oil control serum sparingly, being extremely careful not to get product in eyes. On and around lips in order to enhance lipstick wear and lessen lipstick "bleeding."