Well actually, no. These methods of testing, both on animals and humans, have been criticised for their flaws. Interestingly, human models are problematic, as the skin on the back, where products are usually tested, is very different from facial skin. Tests are also usually carried out on a very small number of volunteers, which isn’t entirely representative, and products are often tested under occlusion, which means materials are applied on top to prevent air from reaching the area. In other words, the tests are often not standardised or regulated, so just like the terms ‘hypoallergenic’, ‘clean’, ‘non-toxic’ and ‘natural‘, ‘non-comedogenic’ falls into the realm of marketing claim rather than absolute truth. This means it could still break you out – something which even industry and healthcare professionals fail to realise.