How do we know that L'Oreal test on animals?

L'Oreal claims that they do NOT test on animals, but other resources tell me that they do and that the company is trying to hide the fact that they are testing on animals. So, how do we know which one is true?How do we know that L'Oreal test on animals?
you will know a company will test on animals if they file to the FDA for food or animal use under the FD%26amp;C. L'oreal may not do test directly, but may farm that research out to other companies who do the tests and return the IP back to l'oreal.How do we know that L'Oreal test on animals?
if the back of the product says nothing about animal testing, it probably does
Maybe check with the FDA. Also, check their website?
I agree with Ms. Informed.