When I joined 16 odd years ago -we (egg carrying members of the RN!)were encouraged to wear make up when in nos 1 (best unifrom to those not in the know) - however I only ever wear make up to mess functions. I have always thought it looks untidy and makes a mess of your uniform. I have many a trainee I have had to order to go and remove some of the pancake on their face as it has looked awful. As a word of advice from a female member if it is light and subtle you will be okay but when you are at sea you probably won't have the time or the desire to put a face on - save it for special occaisions - it does your skin wonders - remember the more make up you wear the less your skin can breathe and the more spots may get.