PLANTADEA/Unsplash Dermatologists who've spent decades researching skin health are pointing somewhere completely different than costly procedures and skincare routines. Nothing to do with bird droppings or blood draws. The Numbers Behind the Industry Between 2007 and 2018, dermatology offices saw 1.55 billion patient visits. That's according to data published in Nutrients. The entire industry built itself around one approach - treating skin from the outside with products and procedures. Recent research challenges that whole model.