It came with 2 tubes of whitening gel, the trays and a handy tray holder. It had great directions. You should heat the silicon trays so that they fit your mouth better. Once you do that you just squeeze some gel into each tray and spread it around so that you have better coverage. Place the trays into your mouth and wait 15-20 mins. Then you can rinse your mouth and your trays.
So, I drink a lot of tea. I mean A LOT! My bottom teeth were almost brown from the tea stains. My dentists tells me I have very porous teeth and that is why they stain so bad. I had a lot of trouble using the trays. They were too long and made me gag so I cut them to make them shorter but I still gagged when I placed them in my mouth. I had another tray that fits my mouth better and doesn't make me gag. Plus its very soft and comfortable. So I used a different tray spread the gel on and waited the 20 mins. I will say this gel tastes a lot better than others I have tried. Now like I said my teeth were horrible, so horrible I didn't even take a picture because I was embarrassed. But I did take an after picture after using the whitening gel for a free days. I am very impressed with my results.
No more brown bottom teeth! I was in a wedding that weekend and was so happy that I could smile without trying to hide my bottom row. I love this product and I'm so glad I got the chance to test it out. I will def continue to use it.