Why would you think 45 could be to old?
Although I do not wear makeup, I do occasionally wear eye makeup. I do not understand why you think this age may be too old. If it is, someone forgot to tell me many, many years ago. When you start thinking your too old to do this or that, then your old before your time.
Do everythink you can, to stay young for as long as you can. Once you stop doing, you will get old.