Company is awful i messaged for advice on their instagram theyve uploaded loads since i messaged yet no response also i made TWO reviews and both wasnt published soo unhappy I have seen a slighy difference but not much but even more unhappy the fact the teeth whitening strip on the bottom of my teeth keeps getting stuck to my finger and just ripping apart soo i lose out on many for my bottom teeth so have not had a full experience. If only the customer service was good to resolve my problem or give me advice if it worked well in the end i would reccomend to everyone i know, but due to the lack of good customer service i will be telling people to not buy.