LENZING - Lenzing has announced that its Lyocell fibre Tencel has been certified by FKT, the German accreditation business whose label proves that textiles have undertaken a science-based method for testing the effects that textiles have on the skin. Tencel is the first fibre to be medically tested according to the FKT test method criteria for body compatibility and toxic substances. While conventional tests for harmful substances test textiles for certain well-known substances, they don't look at the effects these textile chemicals may have on the skin while wearing the textile products. The FKT tests, in addition to testing for harmful substances, also include a test for 'body compatibility'.