The Mary Kay cosmetic company does not test their products on animals. The company founder and owner Mary Kay Ash revolutionized the industry when she chose to end the animal testing. Although the company has used live animals for testing, Mary Kay has banned the use by signing the Corporate Standard of Compassion for Animals aggreenment in 1989.
Mary Kay never used to test on animals, but unfortunately since at least 2012 they started paying for poisoning tests on animals because of their market in China. If you want cruelty-free cosmetics, avoid them!