What Are the Side Effects of Vegetable Glycerin?
Vegetable glycerin is normally a safe product with numerous benefits. However, it can cause an allergic reaction if it is applied directly to the skin. This is why it is advisable to start with applying little amounts to observe how your skin reacts.
Vegetable glycerin can cause dizziness, nausea, excess thirst, vomiting [4], and headaches [5] in some people if it is ingested. Glycerin is a type of sugar alcohol that cannot be completely absorbed by the body. Therefore, consuming excess amounts, either alone or through foods may cause diarrhea [6] and gas.