Review on 💎 Cool Teeth Whitening Gel Refills Carbamide Peroxide - DIY 25 Treatments Tooth Whitener - Dentist Grade Strength Enamel Safe Whitener by David Gonzalez

I am satisfied with the fast delivery. Also, the instructions state that the mouthpieces only stay for 15 minutes. My problem was with the mouthpieces. I followed the directions to cast the casts and had to work really hard to try them on. This took much longer than recommended. I did everything I could. Trimmed, excess removed and tried on same day. Not suitable. I received a sip of the product due to a poor fit. I noticed the whitening effect, but it was difficult to keep it in my mouth for even 15 minutes. I tried again to blind her. Now they are useless. Now I have a whitening product but I can't use it. Very disappointed.