Definition of Non-acnegenic or non-comedogenic?
Non-acnegenic means it does not cause or promote acne. Non-comedogenic means it does not cause or promote comedones (blackheads).
You cannot "remove" it. If you have oily skin, you have oily skin for life. You can manage it: Wash your skin no more than twice a day and after you perspire heavily. Use a gentle cleanser and don't scrub. Don't pick, pop, or squeeze pimples. This prolongs healing time. Use products labeled as "noncomedogenic." They tend not to clog pores.
A definition can be a few things. According to Webster, a definition can be four things: An act of determining A statement expressing the essential nature of something An act or process of defining An act or action of describing, explaining, or making definite and clear http://webster.com/dictionary/definition ****** TYPES OF DEFINITION 1. Simple Definition formal semi-formal non-formal 2. Complex Definition definition by stipulation definition by operation definition by explication