Diadermine cream 50 ml ph5 protective moisturizing day care Diadermine laboratories have created PH5 moisturizing day care to meet the daily needs of people with weakened skin. We must not forget that the skin faces water loss every day. Therefore, it dries out and becomes more brittle, less flexible. It is important to regulate this hydration of the skin, through products such as Diadermine PH5 day care.