This kit comes with everything you will need to get the perfect white teeth. Note that the blue syringes are the Remineralization gel which came separately. If you have extra sensitive teeth I would recommend you get these to help strengthen your teeth. I really saw a big difference when using this teeth whitener and the molds were easy to get shaped to my teeth. This is the same strength as the teeth whiteners they use at the dentist office. This works so much better than the teeth whitening strips you see over the counter. Buy yours here today:
http://www.amazon.com/Dr-Song-Professional-Whitening-Applicator/dp/B00DQ31IUO/ref=sr_1_4?ie=UTF8&qid=1418533432&sr=8-4&keywords=dr.song
http://www.amazon.com/dp/B00KECQ8BY/ref=sr_ph?ie=UTF8&qid=1418533432&sr=1&keywords=dr.song
http://www.amazon.com/Dr-Song-Professional-Whitening-Applicator/dp/B00DQ31IUO/ref=sr_1_4?ie=UTF8&qid=1418533432&sr=8-4&keywords=dr.song
http://www.amazon.com/dp/B00KECQ8BY/ref=sr_ph?ie=UTF8&qid=1418533432&sr=1&keywords=dr.song