You can use hot, soapy water, white vinegar, rubbing alcohol, window cleaner, nail polish remover, WD-40, and cooking oil to remove glass labels. You can also apply heat with a hair dryer or steam cleaner. Use a plastic scraper or credit card to remove the adhesive, as a razor blade can permanently scratch your glass.

Hairdryer Turn your hairdryer on to high heat and run it back and forth over the label face for 30 seconds to melt the label glue. If the label doesn't peel off, continue heating at 30-second intervals until you can remove the label. Use a wet, soapy sponge to remove any leftover glue.