These work very well but there is a trick to using them. Place the clear label remover over the wine label and smooth out. Then fill the bottle with HOT water, I have an instant hot water dispenser which makes this easy. Wait 1 minute. Then start with one corner with a razor blade to lift the corner of the wine label. Then just pull slowly and the entire lable comes off easily. The hot water loosen the glue holding the lable to the bottle.
These label removers are fantastic. They're easy to use and great for putting right into your wine journal. My wife got me these as a gift and I have been a huge fan ever since. Definitely a repeat purchase!