What type of vitamins should I be taking for a healthy complexion?

My aunt and uncle are coming in six weeks, I haven't seen them in 2 years. When I got back from Spain everyone commented that I had such a healthy complexion and kind of a glow---I want to look the same way when my aunt and uncle arrive from San Diego. Unfortunately the glow is fading and I think vitamins may do the trick and bring it back. Our neighbor said the reason I looked so healthy when I got back from Spain was that the food was much more wholesome there than in NJ. Well, I can't eat fish and paella everyday here, but I can surely take vitamins, I just need to know which ones to take and if they can work their magic in six weeks.