In-vitro tests: Every possible active ingredient or formula identified by our researchers will undergo testing. With reconstructed skin models that reproduce skin’s structure and by optimally imitating the conditions and reactions with real skin cells, it is possible to examine and "predict” physiological reactions to active substances. Hundreds of formulas and thousands of possible ingredients are tested this way every year.
In-vivo tests: Eucerin maintains entire in-house test unit facilities where the in-vivo tests (tests on study participants) are conducted. Patch tests deliver insights and results as to whether a product’s skin tolerability is actually given. In these tests, patches containing a small sample of the test product are applied. Mostly on the sensitive skin of a forearm, to study reactions and tolerability. The facilities are a vital part of the skin research centre at Hamburg. More than 2,200 studies on new skin care formulas and active ingredients are conducted here every year, involving 45,000 contacts with volunteers. Eucerin also works closely with a multitude of external test institutes, dermatological clinics and experts.