[Aprill]

Thimerosal is better known as mercury, yes, and it is the preservative in vaccines. From what I understand (and someone please correct me if i am wrong). The exposure is more alarming for infants rather than adults because infants lack the ability, to eliminate mercury from their bodies and therefore not a risk to adults.
The amount that you would get in your body if you get any in your body at all from using this cake mascara would be comparable to the amount of harm you would get from drinking a glass of tap water, knowing that majority of it contains chlorine used to purify water, even though it is a deadly gas.

Almost everything you come in contact with has a potential to be deadly.