Your skin works like a filter. It is your largest organ and it's in direct contact with your environment. Well-functioning skin is important to be fully protected against external stressors. It is important that we honor this barrier function and support the skin with biological, skin-identical substances. ​ Skin-identical substances are immediately recognized by our body as her body's own, so the immune system does not have to react. As a result, our body stays in her natural rhythm.