Conflict of Interest
CH reports grants from Beiersdorf, Germany, and Sebapharma, Germany, outside the submitted work. ABW has nothing to disclose. CTH reports personal fees from Novartis, Germany, Sanofi, Germany, Lilly pharma, Germany, Bencard, , Germany, Danone nutricia, Lancome, Germany, Loreal, Germany, grants and personal fees from Töpfer GmbH, and Beiersdorf AG, Germany, outside the submitted work. MR reports personal fees from Bencard, Germany, Roche-Posay, Germany, Galderma, Germany, Sebapharma, Germany, grants from CLR, Germany, and Beiersdorf, Germany, outside the submitted work.