How to take before-and-after photos for beauty device treatments; inconsistent lighting and angles are the easiest way to cause misunderstandings.

When performing beauty device treatments, if the before-and-after photos aren't taken well, it becomes very difficult to explain the results later. Previously, we would just snap photos casually at the shop—one before the client arrived and one after—but the angles and lighting were always different. Sometimes it looked like there was a significant effect, and other times it looked like there…