I’ve used this brand before and I loved it. It really did work. But I purchased it this time and every strip has come melted and doesn’t stick to my teeth at all. All the strips look like this to the point where they cannot be used. Very disappointed! How can they go from being perfect to this! How can they melt or I don’t know what’s happened to them but it’s disgusting! Definitely be trying other brands from now on. This has put me off every buying them again! What a waste of money!