Due to a large disaster in 1920, where women were drawn to salons for an eyelash treatment designed to make their lashes darker. The dye, called Lash Lure, did as it promised but in exchange for lush lashes, the beauty searches received problems from mild eye irritation, to blindness, and even death. This horrible cosmetic incident led to the main cosmetic animal test used today, the Draize tests. The Draize skin test is where the hair of rabbits, mice or rats is shaved in a small area. The cosmetic products are then rubbed directly into the skin and the area is regularly inspected for damage or irritation. The Draize test has been criticized for being unreliable and a needless waste of animal life. The LD50 test is used to test the dosage
