Scientists, do this to make sure that humans are not affected by cosmetics. Sometimes the cosmetics could be safe or not safe for the animals. Also it could kill the animals. For example, many vaccines were developed and tested on animals before they were tested on humans. Insulin, a diabetes drug, was developed through
Scientists, do this to make sure that humans are not affected by cosmetics. Sometimes the cosmetics could be safe or not safe for the animals. Also it could kill the animals. For example, many vaccines were developed and tested on animals before they were tested on humans. Insulin, a diabetes drug, was developed through