Due to its antimicrobial properties, vegetable glycerin safeguards against microbial contamination in liquid supplements. This is particularly advantageous in situations where pets' mouths may come into contact with the dropper used for administering supplements.
Some forms of glycerin have been shown to have potential benefits for cardiovascular health. Vegetable Glycerin also has no negative impact on the liver, nor does it affect blood sugar, making it an inert but palatable medium for tinctures (properly called “glycerites”).