Bests & Worsts Reviews from Amazon

I didn't know when I bought it, but apparently they test on animals. It makes so sense. Different things are toxic to different species. So why test on them? If I used this on my dog, he'd have an awful reaction. Tea tree oil is extremely toxic to cats. Why test on animals? Has science not advanced enough to where there are other ways to test products? Plenty of companies do without animal testing, but this company is too greedy.