Animal testing is usually practised to test the products such as cosmetics or medication and vaccines that have new or unproven chemicals or ingredients.  The test include injecting the chemicals straight inside the skin, putting the chemicals on the skin or eyes of the animals, force feeding the chemicals to the animals or making them inhale the chemicals.  This is done to see if any irritation or illness occurs and if the product is safe to sell.

Animal testing mainly affects guinea pigs, bunnies, mice, frogs, beagles, hamsters, cats and monkeys, although these animals are the main subjects for testing, it can affect all kinds of animals all over the world.

 Animal testing began in around 500 BCE and became worse and more popular around the 19th and 20th century, and since then animal testing has become a very common practice that lots of companies and organisations use. This is a very important issue because most consumers of these products either don't know about animal testing, or the product fails to  inform consumers that the product has been tested on animals.

Animal testing is the most common in China, Vietnam and America, as they lack lots of animal rights and animal welfare. Even though these countries are the most common in animal testing, animal testing is done almost all over the world in many countries and states.