What does the Allergy Certified certification mean? Allergy Certified is an international certification created in Denmark. Ewa Daniel, who is one of the two who started Allergy Certified, comes from a position as leading toxicologist at Asthma Allergy Denmark. When we get a product certified by Allergy Certified, we must provide all information about ingredients, raw materials and their concentrations. Toxicologists and pharmacists review and risk assess each and every raw material to ensure that there are no known allergens in the product. Even though it is an allergy certification, they also ALWAYS check that there are no hormone-disrupting or carcinogenic substances in the products that are certified. An approval by Allergy Certified is the best guarantee that a product is completely safe to use, both in relation to allergies, hormone-disrupting or potentially cancer-causing ingredients. When you buy a Sandstone product that is Allergy Certified, both we and you have done everything possible to give you safety and security when using your makeup.