The Danne Alkaline Wash system is a remarkable treatment designed to reduce fine, downy hair, especially from the face. This type of hair is very difficult to remove as the hair growth is usually dense and would take a long time to treat with Electrolysis. Alkaline wash can remove large areas of hair in one treatment without discomfort, in comparison to other hair removal systems. What is Alkaline Wash and how does it work? Alkaline Wash is an alkaline powder, which is mixed into a paste and applied to the skin for approximately minutes.