Cultivation of human skin tissue in the lab.

All potentially skin-irritating substances such as cosmetics and chemicals before marketing approval of their testing, so that any risks to consumers can be assessed. Each year about 20,000 for animal testing, especially in rabbits and mice. At 1 June 2007 entering into force REACH chemicals regulation makes it necessary, including chemicals that are already on the market, using rabbit skin on their impact to be reviewed.
Researchers have long endeavor, a satisfactory replacement for animal tests to find - primarily to the animals unnecessary suffering to spare, but also because the skin of animals is not always how human skin responds. Moreover, from the year 2009 within the EU the testing of cosmetic ingredients on animals prohibited. With a recent positive test of five new "in vitro" tests by the European Center for the Validation of Alternative Methods (ECVAM) is the target of animal testing a good deal closer. 
Two of the "in vitro" tests based on the cultivation of human skin tissue in the lab. The resulting cell cultures to simulate the behavior of human skin on exposure to chemicals and make experiments on rabbits as superfluous. With two further tests using animal tissue from slaughterhouses can be severe eye irritation from chemicals detected. A fifth test replaces previous skin allergy tests on mice and their number could be halved.