Nature offers a vast range of solutions for our health problems. This has been known for thousands of years. Because of the almost infinite variety, the mysteries can only be unlocked step by step. From the editor’s perspective such a step has now been taken with the specially processed microalgae extract Spiralin®. A new scientific study published in the Journal of Allergy and Clinical Immunology, one of America’s leading professional journals, records strong antiviral protective effects of the microalgae extract Spiralin®. In a clinical trial (PROTECT study) it even proved superior to the market-leading pharmaceutical topical product against herpes labialis. We talked about the results with the clinical leader of the PROTECT study, Prof. Dr. med. Kristian Reich of the Dermatologikum Hamburg.