I sent a picture 4 my impressions and they said it was good. And then they emailed me saying the impression isn't good and they need a $15 to send me another kit. They did this to me twice. I took Impressions like seven times. I left the impressions in my mouth for about 7 minutes and they still said that some smear appeared like 5 times. I asked for a refund and they took $15 out of my refund and they said it was for shipping the product. It's a whole scam.