I would actually ask a rabbi on this first. The reason is because your date will eventually find out what you look like without makeup. But say you have really thin hair and after marriage the guy finds out that you actually look pretty different. Perhaps not as attractive as you lead him to believe. So really that could invalidate the marriage.
Better ask yourself if you really think its worth fooling the guy over something like this. Many guys won’t care they just want to see YOU as you are – and with good reason. Attraction is important, if you lose that the day after marriage because you had all this fake stuff on you then i can see some troubling times ahead.