Dental Is Glycerin in Toothpaste Safe? Debunking the Myths and Misconceptions Is Glycerin in Toothpaste Safe? Debunking the Myths and Misconceptions – Ask the Dentist Home › Dental Hygiene › Is Glycerin in Toothpaste Safe? Debunking the Myths and Misconceptions Dr. Mark is the author of the best-selling book 8-Hour Sleep Paradox May 16, 2023