answer:We don’t gain anything. They test cosmetics mainly on rodents (especially rabbits) to test toxicity levels, irritants, etc. There is much contest against vivisection about whether the test results on animals are viably comparable to humans. With cosmetics in particular… most use the same ingredients and should, logically, rely on the same tests for those ingredients. If various levels of carmine have already been tested, why do they need to be tested again for newer products? That doesn’t make any sense whether you support cosmetic testing or not. This was the debate topic I chose for my communications class. It’s been a few years since I have done research on this, but I’m very strongly against it.