then it's good not to have anything stainy, anything that would stain a white shirt, coffee, red winea, we stay away from when you're doing your whitening procedures. we might need to move you over to white wine. it's those red stain tan inmolecules. >> how are you? >> i'm fine. dr. oz: she is a last-minute planner. she has two days, what's happening in two days? >> i have a family reunion. my sister's teeth are always whiter than mine. i don't drink coffee. i want mine to pop to look better. dr. oz: she wants them to pop. >> i love that, too, because that's what everybody wants. they really do. can you get it done a little bit quicker? so a big breakthrough is taking these elements of light and heat and here is a system that uses light and what i have spent a lot of my own time on is developing and inventing products and what we have developed is light and heat in the mouthpiece. we want this jell to attach to the teeth. you put that on first. then in as little as two days, you're going to start seeing results where this lights up, you bite right into it. it's going to whiten the upp