I have mast cell activation disorder which means I am allergic to almost everything in the outside world. All the scents and dyes, dander and pollen and chemicals make my life miserable. Last year I simply quit using deodorant altogether because of the horrible rashes I was getting from the ingredients. This year I was determined to find a new product, so I decided to start with Dove, a product I had given up on many years ago because of an allergy I had developed after many years of regular use. This specific deodorant is very gentle. I only use a small amount and after two weeks I have not had any skin reactions. The smell is really mild. I never leave it on for more then 8 hours, but it does say that it will work for up to 48 (?!). It washes off easily with my hypoallergenic soap and does not leave any white marks on my black or gray tshirts. I’m glad I took the chance on a supermarket brand.