You can make a difference in your oral health starting today. Advance to a Healthier Mouth from Day. 1 with Crest Pro-Health Multi-Protection Mouthwash which starts fighting plaque from day 1. It's possible to kill germs deep in your mouth without the burn of alcohol. Crest Pro-Health Multi-Protection Clean Mint Mouthwash Kills 99% of Germs without the harsh burn of alcohol. It provides 24 hour protection against plaque and gingivitis when used twice per day. With continued use vs. brushing alone with ordinary toothpaste.