Enlarging the Pupils With Poison

Women in medieval times would use the belladonna plant to make their pupils dilate, which was a sign of increased beauty. They would also rub the leaves of the plant against their cheeks to make them looked flushed. The thing is, the belladonna plant is poisonous and can actually kill a human if ingested of if in high contact with the plant. It’s said numerous Roman nobilities used the plant for murder.