Caulk Remover for Tubs and Showers

There are a variety of tools on the market for caulk removal. One the most effective I've found is a caulk removal tool with a hard plastic V shape. It will allow you to get into the corner and scrape away at both sides of the caulk bead. You can then clean up the remaining caulk with a plastic scraper or a single edge razor blade.

After removing the caulk, always clean up any mold or mildew with bleach or a mold killer. If you do not kill the existing mold, it will bleed through the new caulk.