Propyl Gallate

To be honest, this one sounds like a floor cleaner. It’s used alongside BHA and BHT to preserve meat, chicken stock, and gum. Many common cosmetic products like lipstick, concealers, and mascara contain the maximum allowed dosage of propyl gallate. Although it prevents the rancidity of fats, it’s also been found to have carcinogenic properties.

Animal testing showed that 40% of rats died within the first month of propyl gallate being added to their diet. But this shouldn’t come as too much of a surprise.