Review on Sparkling White Professional Strength Whitening by Paul Pineda

I felt a slight burning sensation on my upper gums a few minutes after putting them on, but I thought "uh, I've used white strips before, sometimes they sting", so that's it I wasn't too worried. Half an hour later I take them off and reveal my burned gums! I rinsed my mouth for about 20 minutes and it was very painful. It looks like I ate marshmallows and left some white pieces on left my upper gums - the strips burned the gums so badly some spots turned purple and others turned white I've used white crest strips before with no problems here's what I get when I try to settle for the cheaper option to decide. 100% never again.