So according to Dr. Mustapha Debboun, editor of ???Prevention of Bug Bites, Stings and Disease,??? both types of products have their place. ???The way to think about it is that chemicals are better for longer hours in the deep woods,??? Debboun says, ???while all-natural ingredients are fine for the backyard, beach, and other places where you won???t be out for extended periods.??? So think Deet o