For what reasons shouldn't scientists use animals for testing on chemical and beauty products?

I NEED THE ANSWERS QUCIK AND FAST!For what reasons shouldn't scientists use animals for testing on chemical and beauty products?
the only reason is animal cruelty. watch legally blonde.


I don't see a problem of testing chemicals on animals, especially for medication purposes. but seriously we can live without some of the beauty products.For what reasons shouldn't scientists use animals for testing on chemical and beauty products?
It is, quite simply, bad science. Animals have different reactions to substances than human beings.


Every drug or chemical that was ever banned after causing cancer and birth defects in humans, was first tested on animals.